Polygraph Usage
Polygraph Use i
Should Polygraphs be used in Court Rooms as Admissible Evidence?
Ebony Barr
Psychology and the Legal System FP 6010
Professor Neely
December , 2010
Polygraph Use ii
Abstract Polygraph is widely rejected as pseudoscience by the scientific community. Prior to 1998 state and county courts allowed or could allow polygraph evidence to be admissible evidence to convict or prove guilt. Polygraphs should not be used in Court Rooms, the accuracy of the test have not and are yet to be proven. Because polygraphs are not accurate and can be manipulated they should not be used in pretrial or during the trial. Polygraphs affect the mental health world because most scientists do not rely on them or do not agree that they should be used in a court of law. Also known as, a "lie detector," the polygraph has a controversial history in U.S. law. First developed in the late nineteenth century, its modern incarnation is an electromechanical device that is attached to a subject's body during an interview. The discipline of polygraph is based on the theory that by recording involuntary physiological changes in the subject, the polygraph yields data that can be interpreted to determine whether the subject is telling the truth. The paper will support the opinion that polygraph test should not be admissible in court as evidence.
Polygraph Use 1
Should Polygraphs be used in Court Rooms as Admissible Evidence?
A polygraph which is often referred to as a lie detector test is an instrument that measures and records several physiological indices such as blood pressure, pulse, respiration, breathing rhythms/ratios, and skin conductivity. The subject is asked series of questions; and it is believed that the deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers. Polygraphs were being used outside the court room and inside as well. Polygraphs
Should Polygraphs be used in Court Rooms as Admissible Evidence?
Ebony Barr
Psychology and the Legal System FP 6010
Professor Neely
December , 2010
Polygraph Use ii
Abstract Polygraph is widely rejected as pseudoscience by the scientific community. Prior to 1998 state and county courts allowed or could allow polygraph evidence to be admissible evidence to convict or prove guilt. Polygraphs should not be used in Court Rooms, the accuracy of the test have not and are yet to be proven. Because polygraphs are not accurate and can be manipulated they should not be used in pretrial or during the trial. Polygraphs affect the mental health world because most scientists do not rely on them or do not agree that they should be used in a court of law. Also known as, a "lie detector," the polygraph has a controversial history in U.S. law. First developed in the late nineteenth century, its modern incarnation is an electromechanical device that is attached to a subject's body during an interview. The discipline of polygraph is based on the theory that by recording involuntary physiological changes in the subject, the polygraph yields data that can be interpreted to determine whether the subject is telling the truth. The paper will support the opinion that polygraph test should not be admissible in court as evidence.
Polygraph Use 1
Should Polygraphs be used in Court Rooms as Admissible Evidence?
A polygraph which is often referred to as a lie detector test is an instrument that measures and records several physiological indices such as blood pressure, pulse, respiration, breathing rhythms/ratios, and skin conductivity. The subject is asked series of questions; and it is believed that the deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers. Polygraphs were being used outside the court room and inside as well. Polygraphs
References: “Conviction of Sex Offenders and Polygraph Testing” www.nmsc.state.nm.us Accessed December 1, 2010 Daubert v. Merrell Dow Pharmaceuticals, Inc. (1993) Frye v. United States, 54 App. D. C. 46, 293 F. 1013. No. 3968, (1923) Rock v. Arkansas, 483 U.S. 44, 55, Washington v. Texas, 388 U.S. 14, 23, and Chambers v. Mississippi, 410 U.S. 284, 302—303 United States v. Scheffer, (1998)