The aim of this investigation was to examine the psychological factors contributing to the wrongful conviction of Martin Conmey. Comney was found guilty of the manslaughter of Úna Lynskey in Ireland in 1972 but has asserted that the police coerced him into his confession. An analysis of the interviewing techniques used by police in different countries may illuminate how wrongful convictions occur. Due to the interrogative nature of the US police-interviewing system, there is no safeguard against the occurrence of false confessions during investigations. Studies indicate that the US police-interviewing strategy, the Reid Technique, is psychologically manipulative, aiming to weaken the suspect’s ability to make decisions and retain successful