The Relative Utility of the Forensic Disciplines.
Final rept. Aug 92-Mar 93,
DEPARTMENT OF DEFENSE POLYGRAPH INST FORT MCCLELLAN AL
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The efficacy of the forensic disciplines in felony criminal investigations was assessed. Reports and investigations of the findings of 1,069 forensic examinations reviewed involved 920 felony investigations conducted between 1 July and 30 December 1990 by the United States Army Criminal Investigation Command USACIDC. The traditional laboratory disciplines combined conducted 584 55 and the psychophysiological detection of deception PDD discipline conducted 485 45 of the examinations. The PDD discipline provided the investigator with 432 89 opinions that contained positive results and the laboratory disciplines provided positive results in 431 74 examinations. In all categories assessed, regardless of type of crime, a higher solve rate was achieved for USACIDC when multiple forensic disciplines were utilized. The PDD discipline was the most utilized and effective of the individual disciplines, but all forensic disciplines demonstrated a high degree of utility in specific criminal offense categories. Of the 1,069 examinations reviewed, there were no instances in which the findings of one discipline contradicted the results of any other discipline.
- Anatomy and Physiology
- Miscellaneous Detection and Detectors