Expert Opinion based on Evidence from Forensic Hypnosis and Lie-detection
Truth drugs, hypnosis and the polygraph are three techniques which share a common application and engender similar problems. They are used to elicit information which cannot be obtained by more orthodox means. So effective can these techniques fie that they are specifically proscribed in the USA in cases where the person concerned possesses classified information (e.g. Air Force Regulations 127–4: Section C. 12A). Such techniques are viewed by some as latter-day equivalents of the rack and thumbscrew of less happier times. Others see them as civilised alternatives to the rubber truncheon and genital electrodes employed in less democratic regimes. This paper is not concerned with the moral issues raised by the use of these techniques, important though these issues are: rather, attention is drawn to the nature of the information so obtained and the way such information is used.
KeywordsPolice Officer Rape Victim Legal Context Expert Evidence Forensic Psychologist
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