Polygraph Research Papers Samples For Students

Voice Stress Analysis

Voice Stress Analysis

Introduction

Voice Stress Analysis (VSA) is a technology that can help in recording the psychophysiological stress responses in the human voice, especially in conditions when the person is in psychological stress due to some external stimulus, such as questions, and consequences related to the answer could be highly undesirable for subject under trial.

Lie detection is one of the most important procedures in identifying the deceptive mind. Many theories have been presented about lie detection throughout the history. In the police interrogation, “gut reaction” is considered as an important tool to identify whether the person is telling the ...

Introduction

Polygraph is a detector that records and measures various physiological indices including respiration, blood pressure, skin conductivity and pulse while the subject is asked continuous questions as he/she answers. The belief that underprops polygraph use is that answers which are deceptive will give responses which are termed as physiological and they can only be differentiated from those which are linked with answers which are non-deceptive. Polygraph device was developed in the year 1921 by a police officer and a medical student in California. The device was listed among the greatest inventions in 2003 described as one of the inventions that have had a ...

Introduction

A private investigator is frequently shortened to PI and casually referred as a private eye. An inquiry agent or private detective is an individual that can be employed by a person or groups to take on exploratory law services (Rigakos, 2008). Private investigators or detectives regularly work for attorneys in civil matters. The very few skilled private investigators work together with defense attorneys on major punishment and defense of criminal cases. Private investigators are, therefore, private citizens having different types of experience and training. Investigators look for, collect, gather, scrutinize, and establish substantiation in criminal and civil cases for insurance companies, ...

Introduction

Drug testing is a practice used by employers to ensure that the individuals they want to hire or the existing employees are healthy individuals who don’t abuse drugs. Employers can ask for drug tests at different times or situations. However, drug test requests can be unjustified in some cases since they infringe on employee privacy. Polygraph tests are used are used to tell employees who tell give false information.

Drug testing

Drug testing has limitations in that it has a negative impact on the employee’s mental and emotional condition. In cases where the employee is mistaken to be using drugs, the ...