Leading Interview and Interrogation Techniques: Focus on Cognitive Interview

This review article addresses critical training deficits in Mexican criminal investigations by synthesizing international research on evidence-based interviewing techniques. Authored by leading cognitive interview researcher Ronald Fisher and Mexican scholars, the work emphasizes the scientifically-validated cognitive interview as superior to traditional confession-focused interrogation, covering applications with victims, witnesses, and suspects while integrating modern credibility assessment approaches including Strategic Use of Evidence and Verifiability Approach.

This is a comprehensive review article synthesizing international research on investigative interviewing techniques, with particular emphasis on the cognitive interview, Strategic Use of Evidence, and Verifiability Approach, contextualized for Mexican criminal justice system application.

This review article addresses critical training deficits in Mexican criminal investigation by synthesizing international research on evidence-based interviewing techniques. The authors, including cognitive interview pioneer Ronald Fisher, present the cognitive interview as a scientifically-validated alternative to traditional confession-focused methods that risk false confessions. The work describes multiple interviewing approaches including cognitive interview structure, Strategic Use of Evidence (SUE), and the Verifiability Approach (VA). The review emphasizes how proper application of these techniques produces superior outcomes compared to coercive interrogation methods while protecting fundamental rights. The article serves both as educational material and a call to action for Latin American justice systems to adopt evidence-based interviewing practices.

This work highlights the need for systematic training in evidence-based interviewing techniques within criminal justice systems and provides practical guidance for implementing cognitive interview methods as alternatives to traditional interrogation approaches.

Background & Context

Criminal investigation in Mexico faces a critical training deficit, with governmental institutions lacking a culture of training in techniques for obtaining objective and reliable information that guarantees the protection of fundamental rights. This gap has profound implications for justice administration, as investigators across the "investigation triad" — police, medical experts, and prosecutors — rely heavily on interview and interrogation techniques without proper scientific grounding.

This 2022 review article brings together international expertise, with renowned cognitive interview pioneer Ronald Fisher from Florida International University collaborating with Mexican researchers to address this training vacuum. The work emphasizes the cognitive interview (CI), which has been validated scientifically as one of the best tools to obtain useful information that can be used in court. The piece serves as both educational material and a call to action for Latin American justice systems to adopt evidence-based interviewing methods.

In America, traditional police interview techniques seek confessions because such evidence carries significant weight in court, but these methods carry the risk of false confessions and wrongful convictions. This review contrasts the accusatorial approach with information-gathering techniques, positioning the cognitive interview as a scientifically-validated alternative to coercive methods.

Research Design & Methodology

This work is a comprehensive review article rather than an empirical study with participants or experimental data. The authors describe multiple interviewing techniques including the cognitive interview, mnemonic techniques, Strategic Use of Evidence (SUE), and the Verifiability Approach (VA). The chapter was originally published in a 2019 Mexican textbook on psycholegal and criminological investigation before being adapted for European Polygraph.

The methodology involves synthesizing international research on investigative interviewing with practical application guidance for Mexican investigators. The authors reference the 1992 PEACE Model adopted in England and Wales as a standardized strategy focusing on rapport development, ethical interviewing, and truth acquisition. The cognitive interview was initially designed for interviewing witnesses and involves four core elements, which the authors detail alongside complementary credibility assessment techniques.

Key components covered in the review include:

• Cognitive Interview structure: rapport building, free narrative, mental reinstatement of context, and varied recall perspectives
• Integration with credibility assessment: combining CI with SUE and VA approaches
• Closure procedures: methodical interview termination and future contact planning
• Cognitive load techniques: methods to differentiate truth-tellers from deceivers based on cognitive demand

Results & Key Findings

The cognitive interview is scientifically validated as one of the best tools to obtain useful information, with results conducted in the field admissible in court. This represents the article's central thesis — that evidence-based interviewing produces superior outcomes compared to traditional confession-focused interrogation.

The CI technique can be applied with victims, witnesses, or suspects, demonstrating versatility across investigative contexts. The authors detail how modern applications extend beyond witness interviews to include suspect interrogations when properly adapted.

Key principles and applications identified:

• Clarifying questions and open-ended questioning should precede closed questions when expanding new information, with some practitioners using this phase to assess credibility through SUE or VA techniques
• Interview closure should collect background information, extend functional life by encouraging continued recall, and create positive lasting impressions
• The Verifiability Approach allows interviewers to form credibility assessments by counting checkable details without actually verifying them, while cognitive load techniques make lying more mentally demanding
• Cognition-based deception detection techniques are distinguished from arousal-based methods like polygraph, though CI's reverse-order component is used by some for credibility assessment

Discussion & Significance

This review holds particular significance for polygraph professionals because it bridges two domains: pre-test interviewing and information elicitation distinct from physiological detection. The authors position the cognitive interview not as a replacement for polygraph examination but as a complementary investigative tool that maximizes information quality before or independent of psychophysiological testing.

The work's emphasis on the Mexican context reveals broader challenges facing developing criminal justice systems. The absence of training culture in institutions responsible for investigating crimes results in ignorance of techniques for obtaining objective and reliable information. This educational deficit has implications beyond Mexico — many jurisdictions worldwide rely on interrogation methods that prioritize admissions over comprehensive information gathering.

The integration of credibility assessment techniques (SUE and VA) with the cognitive interview represents an evolution in investigative interviewing practice. Rather than viewing information elicitation and deception detection as separate processes, the authors demonstrate how cognitive load manipulation and detail verification strategies can function within an information-gathering framework. This aligns with modern polygraph practice, where structured interviews complement physiological measurement.

Limitations & Considerations

As a review article rather than original empirical research, this work does not present new data on cognitive interview effectiveness or comparative accuracy rates. The authors synthesize existing literature without conducting independent validation studies in Mexican or Latin American contexts. While the CI has substantial research support internationally, the paper does not address whether cultural or linguistic factors might affect its implementation in Spanish-speaking countries.

The practical application guidance, while valuable, remains relatively general. Specific protocols for adapting CI techniques to uncooperative suspects or integrating them with polygraph examination procedures receive limited attention. The article would benefit from case examples demonstrating successful CI application in actual Mexican investigations, though such material may have appeared in the original 2019 book chapter.

Practical Applications

For polygraph examiners, this review offers important insights into pre-test interview enhancement. The cognitive interview principles — particularly mental reinstatement of context and detailed free recall — can improve the quality of information gathered before physiological testing begins. Examiners conducting event-specific polygraph tests may find CI techniques valuable for establishing timeline clarity and identifying relevant issues.

The discussion of Strategic Use of Evidence and Verifiability Approach provides examiners with complementary tools for post-test interrogation. When physiological data indicates deception, these cognitive approaches offer scientifically-grounded alternatives to confrontational tactics. For consumers considering polygraph testing, understanding that modern investigative practice increasingly emphasizes information gathering over confrontation should provide reassurance about ethical examination procedures. The article's emphasis on protecting fundamental rights while pursuing truth aligns with contemporary polygraph professional standards.