Function of Police Polygraph Investigator

Abstract

The topic of this essay is an issue of polygraph investigation, which is a specific way for questioning, and it belongs to the area of criminal tactic, criminal technique and criminal psychology. Polygraph investigations that police practice today as a part of so called institute of criminal proceedings, as a integral part of general investigation and evidence of procedure of crime as well as its prevention.

Lie detector investigator, psychophysical investigator is presented as a person that has a special expert knowledge and skills. According to the law of Republic of Croatia, polygraphist investigator is considered a special kind of police investigator within the criminal procedure or, under conditions, of criminal investigation. A special attention is paid to standardization of moral responsibility of polygraph investigations as a very important segment of profession of lie detector investigator and improvement of his social function.