Louisiana Law Enforcement Polygraph Use: State Police IA

Origins of the Louisiana State Police

The Louisiana State Police traces its roots to 1922, when the Louisiana Highway Commission was created with just 16 motorcycle patrol officers covering approximately 2,700 miles of roadway [1]Verified History - Louisiana State Police
Confirms LSP origins in 1922 Highway Commission with 16 officers and 1936 formation as Department of State Police with 1,022 current personnel. In 1936, the Louisiana Legislature combined two separate law enforcement divisions to form the modern Louisiana Department of State Police, modeled after J. Edgar Hoover's FBI, complete with a training school and crime laboratory [1]Verified History - Louisiana State Police
Confirms LSP origins in 1922 Highway Commission with 16 officers and 1936 formation as Department of State Police with 1,022 current personnel. Today, the agency has grown into a force of approximately 1,022 men and women responsible for all elements of criminal and highway safety interdiction across the state [1]Verified History - Louisiana State Police
Confirms LSP origins in 1922 Highway Commission with 16 officers and 1936 formation as Department of State Police with 1,022 current personnel. Headquartered in Baton Rouge, the LSP falls under the authority of the Louisiana Department of Public Safety & Corrections and is officially known as the Office of State Police [2]Verified Louisiana State Police - Wikipedia
Confirms LSP headquartered in Baton Rouge under the Department of Public Safety & Corrections, CALEA accreditation history, and recent leadership changes.

The department is divided into nine troops and maintains specialized units including a Bomb Squad, Air Support Unit, and SWAT Team [2]Verified Louisiana State Police - Wikipedia
Confirms LSP headquartered in Baton Rouge under the Department of Public Safety & Corrections, CALEA accreditation history, and recent leadership changes. For individuals interested in Louisiana-specific polygraph services, you can explore options for a lie detector test in Louisiana through qualified examiners.

Creation of the Internal Affairs Section

In 1972, the Louisiana State Police created the Office of Internal Affairs to investigate complaints against employees of the Department of Public Safety [3]Verified Internal Affairs - Louisiana State Police
Confirms Internal Affairs was created in 1972, its mission, duties including background investigations and annual reporting. The mission of Internal Affairs is to protect the integrity of the department by ensuring compliance with the highest ethical standards, performance criteria, and commitment to public service [3]Verified Internal Affairs - Louisiana State Police
Confirms Internal Affairs was created in 1972, its mission, duties including background investigations and annual reporting. Internal Affairs thoroughly and impartially investigates complaints of employee misconduct [3]Verified Internal Affairs - Louisiana State Police
Confirms Internal Affairs was created in 1972, its mission, duties including background investigations and annual reporting.

Beyond misconduct investigations, Internal Affairs also investigates the background of Department of Public Safety applicants to ensure that only the best candidates are considered for employment [3]Verified Internal Affairs - Louisiana State Police
Confirms Internal Affairs was created in 1972, its mission, duties including background investigations and annual reporting. Additional duties include investigating the background of the Governor's appointees and employees of other agencies, and coordinating the activities of the promotion board [3]Verified Internal Affairs - Louisiana State Police
Confirms Internal Affairs was created in 1972, its mission, duties including background investigations and annual reporting. The agency compiles an annual statistical summary report based on records taken from Internal Affairs investigations, available to the public upon written request [3]Verified Internal Affairs - Louisiana State Police
Confirms Internal Affairs was created in 1972, its mission, duties including background investigations and annual reporting.

The LSP Applicant Screening Process

Polygraph testing is a mandatory component of the Louisiana State Police hiring process. The LSP applicant process includes a background investigation that incorporates a scheduled polygraph exam, which may take several months to complete [4]Verified Application and Test - Louisiana State Police
Confirms polygraph exam is included in LSP background investigation, the 4-month application timeline, and hiring process steps. While backgrounds are being conducted, a polygraphist contacts each applicant to schedule a polygraph exam [4]Verified Application and Test - Louisiana State Police
Confirms polygraph exam is included in LSP background investigation, the 4-month application timeline, and hiring process steps. Applicants who consent to a polygraph and have an examination date scheduled must contact the Internal Affairs Section at (225) 925-6189 if they cannot attend their scheduled appointment [5]Verified Personal Data Questionnaire - Louisiana State Police
Confirms LSP polygraph consent procedures, contact information for Internal Affairs Section, confidentiality requirements, and policy for security-sensitive positions.

According to the LSP's own documentation, the use of the polygraph examination under strictly controlled conditions provides a reliable method of verification of the information furnished by candidates on both their applications and during their interviews [5]Verified Personal Data Questionnaire - Louisiana State Police
Confirms LSP polygraph consent procedures, contact information for Internal Affairs Section, confidentiality requirements, and policy for security-sensitive positions. It is State Police policy to use polygraph examinations only on applicants applying for security-sensitive positions [5]Verified Personal Data Questionnaire - Louisiana State Police
Confirms LSP polygraph consent procedures, contact information for Internal Affairs Section, confidentiality requirements, and policy for security-sensitive positions. Any applicant applying for a security-sensitive position who declines to submit to a polygraph examination may be excluded from consideration [5]Verified Personal Data Questionnaire - Louisiana State Police
Confirms LSP polygraph consent procedures, contact information for Internal Affairs Section, confidentiality requirements, and policy for security-sensitive positions. Similar pre-employment polygraph practices are used by agencies nationwide — see our California law enforcement pre-employment polygraph guide for comparisons.

National Context for Law Enforcement Polygraph Screening

Louisiana State Police's use of pre-employment polygraph screening reflects a broad national trend. A landmark national survey by Meesig and Horvath found that among the largest U.S. police agencies, 62% utilized pre-employment polygraph screening programs [6]Verified A national survey of practices, policies and evaluative comments on the use of pre-employment polygraph screening in police agencies in the United States
Confirms 62% of large U.S. police agencies used pre-employment polygraph screening and approximately 25% of applicants were rejected based on polygraph findings. These agencies rejected approximately 25% of applicants based on information developed during polygraph testing that had not been uncovered through other screening methods [6]Verified A national survey of practices, policies and evaluative comments on the use of pre-employment polygraph screening in police agencies in the United States
Confirms 62% of large U.S. police agencies used pre-employment polygraph screening and approximately 25% of applicants were rejected based on polygraph findings. The use of pre-employment polygraph screening in U.S. law enforcement grew dramatically from just 19% of agencies in 1964 to 62% by 1991 [7]Verified Changes in Usage, Practices and Policies in Pre-Employment Polygraph Testing in Law Enforcement Agencies in the United States: 1964-1991
Confirms growth of pre-employment polygraph use from 19% in 1964 to 62% in 1991 among U.S. law enforcement agencies.

Research has shown that polygraph screening programs are particularly valuable in uncovering admissions to serious criminal activity, illegal drug usage, and employment-related dishonesty that traditional background checks alone might miss [6]Verified A national survey of practices, policies and evaluative comments on the use of pre-employment polygraph screening in police agencies in the United States
Confirms 62% of large U.S. police agencies used pre-employment polygraph screening and approximately 25% of applicants were rejected based on polygraph findings. The polygraph serves as a powerful decision-support tool intended to add incremental validity to the personnel selection process [6]Verified A national survey of practices, policies and evaluative comments on the use of pre-employment polygraph screening in police agencies in the United States
Confirms 62% of large U.S. police agencies used pre-employment polygraph screening and approximately 25% of applicants were rejected based on polygraph findings. The American Polygraph Association has established comprehensive standards governing these screening programs.

How LSP Internal Affairs Employs Polygraph Testing

Louisiana State Police Internal Affairs uses polygraph examinations as an investigative tool during misconduct investigations. An LSP spokesman confirmed that all LSP polygraph exams are recorded, and they are conducted as a one-on-one interview between the examiner and the subject [8]Verified Lie detector test noted in Baton Rouge officer's appeal of firing was first of kind in years
Confirms LSP polygraph exams are recorded and conducted one-on-one, and provides details on polygraph protocol for attorney presence from the LA Polygraph Board. This standard practice of gathering all evidence, including video and audio of polygraph exams, ensures procedural integrity [9]Verified Police officer's false claim could have sent a man to prison for 50 years
Confirms standard LSP practice to gather all evidence including video and audio of polygraph exams during internal affairs investigations.

The administrative secretary of the Louisiana State Polygraph Board, Rusty Bordelon, has explained that polygraph examinations are conducted one-on-one because a third person in the room can skew the results [8]Verified Lie detector test noted in Baton Rouge officer's appeal of firing was first of kind in years
Confirms LSP polygraph exams are recorded and conducted one-on-one, and provides details on polygraph protocol for attorney presence from the LA Polygraph Board. The general rule of thumb is that an attorney can be present for the pretest or post-test phases, but not for the test itself — though the attorney can observe [8]Verified Lie detector test noted in Baton Rouge officer's appeal of firing was first of kind in years
Confirms LSP polygraph exams are recorded and conducted one-on-one, and provides details on polygraph protocol for attorney presence from the LA Polygraph Board. Research from the American Polygraph Association confirms that judicial precedent permits law enforcement agencies to require employees to submit to polygraph examinations during bona fide internal investigations, but strict procedural safeguards must be observed, including proper rights advisements [10]Verified Use of Polygraph in Law Enforcement Internal Affairs Investigations
Confirms judicial precedent permits law enforcement agencies to require employees to submit to polygraph examinations during bona fide internal investigations with proper procedural safeguards.

Louisiana law enforcement agencies also outsource polygraph examinations to LSP examiners when needed. For instance, the Baton Rouge Police Department has utilized State Police polygraph examiners to conduct internal affairs polygraphs on its officers [8]Verified Lie detector test noted in Baton Rouge officer's appeal of firing was first of kind in years
Confirms LSP polygraph exams are recorded and conducted one-on-one, and provides details on polygraph protocol for attorney presence from the LA Polygraph Board. For more information on polygraph standards across states, see our guide to US state polygraph associations.

The Importance of Proper Polygraph Procedures

The value of polygraph testing in internal affairs investigations depends heavily on adherence to proper protocols. Research demonstrates that without formal training, police officers achieve only about 47% accuracy in detecting deception — below the 50% chance threshold — with a marked tendency to identify truthful statements (63% accuracy) while missing deceptive ones (36% accuracy) [11]Verified Training police officers to detect deceptive eyewitness statements. Does it work?
Confirms police officers achieved only 47% accuracy in detecting deception without polygraph tools, underscoring the value of scientific polygraph instruments. This finding underscores why agencies rely on scientifically grounded polygraph examination rather than informal judgment when assessing the truthfulness of officers under investigation.

Proper polygraph examiner training must integrate in-depth technical and tactical knowledge, psychophysiological understanding, practical experience, collaboration with field practitioners, and access to contemporary methodologies [12]Verified Strategy of Special Professional Training of Polygraph Examiners in the System of Departmental Education of the Ministry of Internal Affairs of Russia
Confirms that effective polygraph examiner training must integrate technical knowledge, psychophysiological understanding, practical experience, and collaboration with field practitioners. The quality of professional training for polygraph examiners is critical, with research identifying the need for permanent cooperation between educational institutions, law enforcement universities, and experienced field practitioners [13]Verified Development of the Quality of Professional Training of Polygraph Examiners in the System of Departmental Education of the Ministry of Internal Affairs of Russia
Confirms the need for permanent cooperation between educational institutions, law enforcement universities, and experienced field practitioners for polygraph examiner training. Louisiana agencies benefit from trained, licensed examiners operating within a robust regulatory framework. Anyone interested in the profession can learn more at our become a polygraph examiner page.

The Louisiana State Polygraph Board (RS 37:2831)

Louisiana is one of the states that requires mandatory licensing for all polygraph examiners. The Louisiana State Polygraph Board, established under RS 37:2831 et seq., regulates all persons who are certified polygraphists and who purport to be able to detect or verify the truth through the use of instrumentation [14]Verified Louisiana Revised Statutes Title 37, § 2833 - Definitions (Louisiana State Polygraph Board)
Confirms statutory definition of the Louisiana State Polygraph Board and polygraph instrument requirements under RS 37:2831 et seq.. The Board was created after the landmark 1979 State v. Catanese decision, when the Louisiana Supreme Court noted that the state lacked adequate regulation of polygraph operators [15]Verified State v. Catanese, 368 So.2d 975 (La. 1979)
Confirms the Louisiana Supreme Court's 1979 ruling excluding polygraph evidence from criminal trials while acknowledging its reliability under proper safeguards and permitting use in post-trial proceedings. Louisiana enacted the polygraph licensing statute in 1980 to address this gap [16]Verified Evans v. DeRidder Municipal Fire and Police Civil Service Board (Louisiana Supreme Court, 2002)
Confirms the Louisiana Supreme Court ruled polygraph results admissible in administrative hearings for police discipline, and that Louisiana enacted RS 37:2831 in 1980.

Polygraph examiners in Louisiana must meet rigorous qualifications: they must be at least a high school graduate, have completed a polygraph course of at least 270 hours at an approved school, have completed a 6-month internship under a professional examiner, have never been convicted of a felony or misdemeanor involving moral turpitude, and pass an examination administered by the state [17]Verified Employee Polygraph Protection Act (EPPA) - Louisiana
Confirms Louisiana polygraph examiner licensing qualifications including 270 hours of training, 6-month internship, and instrument recording requirements. For details on the Board's functions and licensing process, see our Louisiana State Polygraph Board guide.

The Louisiana Polygraph Association works alongside the Board to promote professional standards. Aspiring examiners can find training at accredited schools such as PEAK Credibility Assessment Training in Florida, Marston Polygraph Academy in California, or the National Center for Credibility Assessment at Fort Jackson.

Unauthorized Practice Penalties

Louisiana law takes unlicensed polygraph practice seriously. Under RS 37:2837, it is unlawful for any person — including employees of any municipality, parish, or the state — to administer a polygraph examination without first being certified by the Board [18]Verified Louisiana Revised Statutes RS 37:2837 - Unauthorized practice
Confirms it is unlawful for any person, including government employees, to administer polygraphs in Louisiana without Board certification. This means that even law enforcement officers employed by government agencies cannot administer polygraphs unless properly certified [18]Verified Louisiana Revised Statutes RS 37:2837 - Unauthorized practice
Confirms it is unlawful for any person, including government employees, to administer polygraphs in Louisiana without Board certification. The only exception allows students attending polygraph schools approved by the Louisiana Department of Education and the American Polygraph Association to conduct non-compensatory live examinations during the final week of their program under direct supervision of a Louisiana certified polygraphist [18]Verified Louisiana Revised Statutes RS 37:2837 - Unauthorized practice
Confirms it is unlawful for any person, including government employees, to administer polygraphs in Louisiana without Board certification.

Only instruments that permanently and simultaneously record cardiovascular, respiratory, and galvanic skin response patterns may be used for polygraph examinations in Louisiana [17]Verified Employee Polygraph Protection Act (EPPA) - Louisiana
Confirms Louisiana polygraph examiner licensing qualifications including 270 hours of training, 6-month internship, and instrument recording requirements. Instruments can additionally record other physiological changes, but those three core measurements are mandatory [17]Verified Employee Polygraph Protection Act (EPPA) - Louisiana
Confirms Louisiana polygraph examiner licensing qualifications including 270 hours of training, 6-month internship, and instrument recording requirements. For additional information on Louisiana polygraph licensing requirements under RS 37:2831-2851, visit our legal resources section.

State v. Catanese (1979): The Foundational Ruling

The landmark case governing polygraph evidence in Louisiana is State v. Catanese (1979), decided by the Louisiana Supreme Court. In this case, Justice Dennis authored the opinion reconsidering the state's rule excluding polygraph evidence [15]Verified State v. Catanese, 368 So.2d 975 (La. 1979)
Confirms the Louisiana Supreme Court's 1979 ruling excluding polygraph evidence from criminal trials while acknowledging its reliability under proper safeguards and permitting use in post-trial proceedings. The Court acknowledged that polygraph evidence, when obtained under proper safeguards, is as reliable as other kinds of scientific evidence accepted routinely by courts [15]Verified State v. Catanese, 368 So.2d 975 (La. 1979)
Confirms the Louisiana Supreme Court's 1979 ruling excluding polygraph evidence from criminal trials while acknowledging its reliability under proper safeguards and permitting use in post-trial proceedings. However, the Court ultimately concluded that it would be Louisiana's judicial policy to exclude polygraph evidence in criminal trials [15]Verified State v. Catanese, 368 So.2d 975 (La. 1979)
Confirms the Louisiana Supreme Court's 1979 ruling excluding polygraph evidence from criminal trials while acknowledging its reliability under proper safeguards and permitting use in post-trial proceedings.

The principal reasons for exclusion were threefold: (1) the trier of fact tends to give almost conclusive weight to the polygraph expert's opinion; (2) at the time, Louisiana lacked a regulatory program for maintaining adequate examiner standards; and (3) there was a need for procedural rules and safeguards governing the introduction of polygraph evidence [15]Verified State v. Catanese, 368 So.2d 975 (La. 1979)
Confirms the Louisiana Supreme Court's 1979 ruling excluding polygraph evidence from criminal trials while acknowledging its reliability under proper safeguards and permitting use in post-trial proceedings. Critically, however, the Catanese Court held that these reasons for exclusion from criminal trials did not necessarily prevent the use of polygraph evidence in all proceedings — specifically allowing for its potential use in post-trial proceedings at the trial judge's discretion [15]Verified State v. Catanese, 368 So.2d 975 (La. 1979)
Confirms the Louisiana Supreme Court's 1979 ruling excluding polygraph evidence from criminal trials while acknowledging its reliability under proper safeguards and permitting use in post-trial proceedings.

Evans v. DeRidder (2002): Polygraphs in Administrative Hearings

The Louisiana Supreme Court's 2002 decision in Evans v. DeRidder Municipal Fire and Police Civil Service Board marked a pivotal expansion of polygraph use in law enforcement discipline. The Court found that the results of a properly administered polygraph are admissible in an administrative hearing before the Board, held to review whether the appointing authority had good or lawful cause for taking disciplinary action against a police officer [19]Verified Evans v. DeRidder Municipal Fire and Police Civil Service Board (2002)
Confirms polygraph results admissible in administrative hearings; officers can be fired for refusing or failing polygraphs when request is reasonable.

The Court distinguished the administrative context from criminal trials, reasoning that a police officer's position as a symbol of public trust demands an immediate corroboration of his statement denying any wrongdoing [19]Verified Evans v. DeRidder Municipal Fire and Police Civil Service Board (2002)
Confirms polygraph results admissible in administrative hearings; officers can be fired for refusing or failing polygraphs when request is reasonable. The Evans Court also noted that by 2002, Louisiana had enacted its polygraph licensing statute (RS 37:2831), which addressed one of the Catanese Court's original concerns about the lack of examiner regulation [16]Verified Evans v. DeRidder Municipal Fire and Police Civil Service Board (Louisiana Supreme Court, 2002)
Confirms the Louisiana Supreme Court ruled polygraph results admissible in administrative hearings for police discipline, and that Louisiana enacted RS 37:2831 in 1980. The Court explicitly held that police officers can be fired for failing to submit to a polygraph when ordered to do so if the request is reasonable, and they can also be fired if they fail a polygraph [19]Verified Evans v. DeRidder Municipal Fire and Police Civil Service Board (2002)
Confirms polygraph results admissible in administrative hearings; officers can be fired for refusing or failing polygraphs when request is reasonable.

This ruling has become the foundation for polygraph use in Louisiana internal affairs proceedings and is directly relevant to how LSP conducts its disciplinary investigations. For a deeper exploration of Louisiana's polygraph evidence rulings, visit our State v. Catanese analysis.

Miller v. City of Gonzales (2016): Polygraph as Interrogation

A significant 2016 decision from the Louisiana 1st Circuit Court of Appeal further shaped polygraph practice in internal affairs. In Miller v. City of Gonzales, a police officer was terminated following an internal investigation that included a polygraph examination administered by a U.S. Secret Service special agent [20]Verified Polygraph Examination Is An 'Interrogation' Covered By Bill Of Rights - Miller v. City of Gonzales (2016)
Confirms the Louisiana 1st Circuit Court of Appeal ruled polygraph exams are interrogations under the Bill of Rights, requiring recording and counsel access. Miller's attorney argued the polygraph constituted an interrogation under Louisiana's Law Enforcement Officers' Bill of Rights.

The Court of Appeal agreed, finding that a polygraph examination by its very nature is a formal or systematic questioning [20]Verified Polygraph Examination Is An 'Interrogation' Covered By Bill Of Rights - Miller v. City of Gonzales (2016)
Confirms the Louisiana 1st Circuit Court of Appeal ruled polygraph exams are interrogations under the Bill of Rights, requiring recording and counsel access. Because the officer was denied the right to record the polygraph and have his attorney present — protections guaranteed under the Bill of Rights — the Court reversed the termination and declared it an absolute nullity [20]Verified Polygraph Examination Is An 'Interrogation' Covered By Bill Of Rights - Miller v. City of Gonzales (2016)
Confirms the Louisiana 1st Circuit Court of Appeal ruled polygraph exams are interrogations under the Bill of Rights, requiring recording and counsel access. The Court acknowledged the harsh result but stated that any relief from the severity of this penalty must come from the Legislature [20]Verified Polygraph Examination Is An 'Interrogation' Covered By Bill Of Rights - Miller v. City of Gonzales (2016)
Confirms the Louisiana 1st Circuit Court of Appeal ruled polygraph exams are interrogations under the Bill of Rights, requiring recording and counsel access. This case illustrates why Louisiana agencies must meticulously follow all procedural safeguards when administering polygraphs during internal investigations.

Overview of Louisiana RS 40:2531

Louisiana's Law Enforcement Officers' Bill of Rights, codified at RS 40:2531, establishes minimum standards that apply when police employees are under investigation with a view to possible disciplinary action, demotion, or dismissal [21]Verified Chapter 25: Rights of Law Enforcement Officers (RS 40:2531)
Confirms full text of Louisiana Law Enforcement Officers' Bill of Rights including interrogation recording requirements, counsel rights, and 60-day investigation timeline. The statute applies to police employees as defined by RS 40:1372(5), POST-certified probation and parole officers, and law enforcement officers employed by municipalities and campus police at state-supported colleges and universities [21]Verified Chapter 25: Rights of Law Enforcement Officers (RS 40:2531)
Confirms full text of Louisiana Law Enforcement Officers' Bill of Rights including interrogation recording requirements, counsel rights, and 60-day investigation timeline.

Key protections include: the officer must be informed at the commencement of interrogation of the nature of the investigation and the identity of persons conducting it [21]Verified Chapter 25: Rights of Law Enforcement Officers (RS 40:2531)
Confirms full text of Louisiana Law Enforcement Officers' Bill of Rights including interrogation recording requirements, counsel rights, and 60-day investigation timeline; all interrogations must be recorded in full [21]Verified Chapter 25: Rights of Law Enforcement Officers (RS 40:2531)
Confirms full text of Louisiana Law Enforcement Officers' Bill of Rights including interrogation recording requirements, counsel rights, and 60-day investigation timeline; and the officer has the right to representation by counsel or another representative of their choice [21]Verified Chapter 25: Rights of Law Enforcement Officers (RS 40:2531)
Confirms full text of Louisiana Law Enforcement Officers' Bill of Rights including interrogation recording requirements, counsel rights, and 60-day investigation timeline. Each investigation must be completed within 60 days, though extensions may be granted for good cause [21]Verified Chapter 25: Rights of Law Enforcement Officers (RS 40:2531)
Confirms full text of Louisiana Law Enforcement Officers' Bill of Rights including interrogation recording requirements, counsel rights, and 60-day investigation timeline.

Critically, the statute provides that any disciplinary action taken after an investigation that violated these procedural protections is an absolute nullity [22]Verified THE INVESTIGATORS: Bill of Privilege? (Louisiana Police Officers Bill of Rights)
Confirms challenges police chiefs face with polygraph testing under the Bill of Rights, proposed legislation to exempt polygraphs, and positions of Louisiana law enforcement associations. This means that even if the underlying misconduct is serious and clearly proven, a procedural violation during the polygraph examination can result in complete reversal of the discipline. Understanding these protections is essential — similar to how officers in other states benefit from their own procedural frameworks, as discussed in our Kentucky Polygraph Association guide.

Practical Impact on Polygraph Administration

The intersection of the Bill of Rights and polygraph testing has created complex challenges for Louisiana law enforcement administrators. Because Louisiana courts have ruled that polygraph examinations constitute interrogations under the Bill of Rights, agencies must ensure that all polygraph sessions are fully recorded and that the officer's right to representation is respected [20]Verified Polygraph Examination Is An 'Interrogation' Covered By Bill Of Rights - Miller v. City of Gonzales (2016)
Confirms the Louisiana 1st Circuit Court of Appeal ruled polygraph exams are interrogations under the Bill of Rights, requiring recording and counsel access.

Police chiefs and IA investigators have expressed frustration with these requirements. Gonzales Police Chief Sherman Jackson noted the challenge: most polygraphists will not administer an examination with a lawyer in the room, as the presence of a third party can skew results [22]Verified THE INVESTIGATORS: Bill of Privilege? (Louisiana Police Officers Bill of Rights)
Confirms challenges police chiefs face with polygraph testing under the Bill of Rights, proposed legislation to exempt polygraphs, and positions of Louisiana law enforcement associations. The Louisiana Polygraph Board's own guidelines support one-on-one testing, with attorneys permitted to observe the pretest and post-test but not the examination itself [8]Verified Lie detector test noted in Baton Rouge officer's appeal of firing was first of kind in years
Confirms LSP polygraph exams are recorded and conducted one-on-one, and provides details on polygraph protocol for attorney presence from the LA Polygraph Board.

Proposed legislation has attempted to exempt polygraph exams from the Bill of Rights' interrogation provisions, but such efforts have faced opposition [22]Verified THE INVESTIGATORS: Bill of Privilege? (Louisiana Police Officers Bill of Rights)
Confirms challenges police chiefs face with polygraph testing under the Bill of Rights, proposed legislation to exempt polygraphs, and positions of Louisiana law enforcement associations. The Louisiana Chiefs of Police Association and Louisiana Sheriff's Association have supported reform efforts, while the Louisiana State Troopers Association has opposed them [22]Verified THE INVESTIGATORS: Bill of Privilege? (Louisiana Police Officers Bill of Rights)
Confirms challenges police chiefs face with polygraph testing under the Bill of Rights, proposed legislation to exempt polygraphs, and positions of Louisiana law enforcement associations. The delicate balance between investigative integrity and officers' procedural rights continues to shape how polygraph testing is administered in Louisiana internal affairs investigations.

For officers facing an internal affairs polygraph, understanding your rights and preparing properly is critical. You can book a polygraph test through our network of professional examiners for personal matters.

Federal Pattern or Practice Investigation

In 2022, the U.S. Department of Justice launched a civil rights pattern or practice investigation into the Louisiana State Police — the first such investigation of a state police agency in 20 years [23]Verified DOJ investigation into the Louisiana State Police
Confirms DOJ launched a pattern or practice investigation of LSP in 2022, the first investigation of a state police agency in 20 years. The investigation was prompted by multiple incidents of excessive force and racial discrimination, including the death of Ronald Greene in 2019 [23]Verified DOJ investigation into the Louisiana State Police
Confirms DOJ launched a pattern or practice investigation of LSP in 2022, the first investigation of a state police agency in 20 years. The DOJ's investigation found that there were serious failures at LSP regarding excessive force, improper supervision, ineffective training, and breakdowns in accountability [24]Verified Investigation of the Louisiana State Police (DOJ Report)
Confirms DOJ findings of failures in LSP internal affairs including delayed investigations, minimized misconduct, and lack of thorough trooper behavior analysis.

The investigation specifically examined internal affairs practices, noting that some Internal Affairs investigations started too late and failed to independently and thoroughly analyze trooper behavior [24]Verified Investigation of the Louisiana State Police (DOJ Report)
Confirms DOJ findings of failures in LSP internal affairs including delayed investigations, minimized misconduct, and lack of thorough trooper behavior analysis. The findings highlighted that the agency's disciplinary review committee could decide to clear troopers of misconduct without any explanation [24]Verified Investigation of the Louisiana State Police (DOJ Report)
Confirms DOJ findings of failures in LSP internal affairs including delayed investigations, minimized misconduct, and lack of thorough trooper behavior analysis.

Current Reforms and Leadership

In May 2025, the DOJ's Civil Rights Division closed its investigation into the Louisiana State Police as part of a broader policy shift [25]Verified Justice Department ends police reform agreements and halts investigations
Confirms DOJ closed its investigation into Louisiana State Police in May 2025 as part of broader policy shift. Governor Jeff Landry had already promised sweeping reforms, appointing Major Robert Hodges — a 28-year LSP veteran — as the new superintendent based on recommendations from his criminal justice advisory council [2]Verified Louisiana State Police - Wikipedia
Confirms LSP headquartered in Baton Rouge under the Department of Public Safety & Corrections, CALEA accreditation history, and recent leadership changes.

These reforms present an opportunity for the agency to strengthen its internal affairs processes and polygraph programs. International research on law enforcement polygraph use supports the continued development of standardized procedural frameworks [26]Verified The Problem of Establishment of a Special Psychophysiological Study with the Use of a Polygraph as a Separate Criminal Intelligence and Surveillance Activity
Foundational research relevant to the legal classification and standardized procedural frameworks for polygraph use in internal affairs agencies. Effective polygraph examiner training and institutional cooperation between educational institutions and field practitioners remain essential to ensuring investigative integrity [12]Verified Strategy of Special Professional Training of Polygraph Examiners in the System of Departmental Education of the Ministry of Internal Affairs of Russia
Confirms that effective polygraph examiner training must integrate technical knowledge, psychophysiological understanding, practical experience, and collaboration with field practitioners[13]Verified Development of the Quality of Professional Training of Polygraph Examiners in the System of Departmental Education of the Ministry of Internal Affairs of Russia
Confirms the need for permanent cooperation between educational institutions, law enforcement universities, and experienced field practitioners for polygraph examiner training. The experiences of Louisiana's law enforcement agencies contribute valuable insights to the broader field of polygraph practice in law enforcement — explored further in our Polygraph Research Database.

For comparison with how other state agencies manage polygraph programs, see our guides to the GBI Polygraph Unit in Georgia, the South Carolina Polygraph Association, and the Pennsylvania Polygraph Association.

Pre-Employment Polygraph Preparation

Applicants to the Louisiana State Police should be prepared for a comprehensive polygraph examination as part of their background investigation. The LSP applicant process is competitive, with the agency receiving hundreds of applications for a very limited number of available positions each year [5]Verified Personal Data Questionnaire - Louisiana State Police
Confirms LSP polygraph consent procedures, contact information for Internal Affairs Section, confidentiality requirements, and policy for security-sensitive positions. The entire process may take approximately 4 months or longer, depending on budgetary considerations and the scheduling of the next Academy Class [4]Verified Application and Test - Louisiana State Police
Confirms polygraph exam is included in LSP background investigation, the 4-month application timeline, and hiring process steps.

The pre-employment polygraph typically covers topics such as illegal drug usage, employment-related dishonesty, involvement in felonies, falsification of application information, and other integrity-related matters [6]Verified A national survey of practices, policies and evaluative comments on the use of pre-employment polygraph screening in police agencies in the United States
Confirms 62% of large U.S. police agencies used pre-employment polygraph screening and approximately 25% of applicants were rejected based on polygraph findings. Applicants must voluntarily consent to the polygraph examination, and any applicant who fails to appear for a scheduled examination will be deemed to have failed to complete the background process, resulting in removal from the hiring process [5]Verified Personal Data Questionnaire - Louisiana State Police
Confirms LSP polygraph consent procedures, contact information for Internal Affairs Section, confidentiality requirements, and policy for security-sensitive positions.

If an applicant wishes to withdraw consent to a polygraph examination, it must be provided in writing to the Internal Affairs Section [5]Verified Personal Data Questionnaire - Louisiana State Police
Confirms LSP polygraph consent procedures, contact information for Internal Affairs Section, confidentiality requirements, and policy for security-sensitive positions. All information gathered during the background investigation, including polygraph results, is considered confidential and privileged under LRS 44:1 et seq. [5]Verified Personal Data Questionnaire - Louisiana State Police
Confirms LSP polygraph consent procedures, contact information for Internal Affairs Section, confidentiality requirements, and policy for security-sensitive positions. For general guidance on polygraph preparation, visit our polygraph test prices page or review our guide to polygraph testing in other jurisdictions.

Internal Affairs Polygraph Procedures

Officers who are subject to an internal affairs polygraph examination in Louisiana should understand both the process and their rights. The examination typically involves a pre-test interview where the examiner discusses the questions and the procedure, followed by the monitored examination itself, and a post-test phase [8]Verified Lie detector test noted in Baton Rouge officer's appeal of firing was first of kind in years
Confirms LSP polygraph exams are recorded and conducted one-on-one, and provides details on polygraph protocol for attorney presence from the LA Polygraph Board.

Under the Law Enforcement Officers' Bill of Rights, officers must be informed of the nature of the investigation at the commencement of interrogation [21]Verified Chapter 25: Rights of Law Enforcement Officers (RS 40:2531)
Confirms full text of Louisiana Law Enforcement Officers' Bill of Rights including interrogation recording requirements, counsel rights, and 60-day investigation timeline. The entire session must be recorded, and the officer has the right to have counsel present — though practically, counsel typically observes from outside the examination room during the test itself [8]Verified Lie detector test noted in Baton Rouge officer's appeal of firing was first of kind in years
Confirms LSP polygraph exams are recorded and conducted one-on-one, and provides details on polygraph protocol for attorney presence from the LA Polygraph Board. Officers cannot be compelled to give statements that will be used against them in criminal proceedings [21]Verified Chapter 25: Rights of Law Enforcement Officers (RS 40:2531)
Confirms full text of Louisiana Law Enforcement Officers' Bill of Rights including interrogation recording requirements, counsel rights, and 60-day investigation timeline.

The psychology of deception detection is complex. Research shows that self-deception and cognitive biases can influence how individuals respond during examinations, which is why trained polygraph examiners employ validated psychophysiological techniques [27]Verified Psychotechnologies in the tactics of conducting special psychophysiological studies using a polygraph
Foundational research relevant to psychophysiological polygraph examination techniques used for law enforcement candidate screening. Understanding why liars believe their own lies can provide valuable context for both examiners and examinees.

For additional guidance or to schedule a polygraph examination, contact us or explore our polygraph test locations across the state.