Kalin Gaidarov

Kalin Gaidarov is a Bulgarian criminal psychologist whose work has intersected with the field of polygraph research. While details of his primary institutional affiliation remain unclear from available sources, his research has been published by the Bulgarian Academy of Sciences, and he holds a professorial title. His broader research interests appear to span mass psychology, individual psychological reactions to disasters, and psychosocial resilience, as well as topics in criminal psychology and aggression research.

Gaidarov's contribution to polygraph science centers on his 2009 collaboration with Lithuanian polygraph examiners Vitas Saldžiūnas and Aleksandras Kovalenko, who were experienced criminal investigators specializing in psychophysiological credibility assessment. Their co-authored article, "The Problems of Truth Perception during Psychophysiological Examination," appeared in the journal European Polygraph and examined fundamental questions about how truth and deception are perceived during polygraph testing—a contribution to the foundational and theoretical understanding of polygraph methodology.

Beyond his polygraph research, Gaidarov has maintained involvement in criminal psychology, contributing to public discourse on crime prevention and law enforcement practices. His single documented contribution to the polygraph literature suggests a brief but substantive engagement with psychophysiological research during a period of international collaboration between Bulgarian and Baltic polygraph researchers.