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Forensics, Polygraph, Science

The validation of the polygraph examination in forensic psychiatry

An interesting abstract to establish the validity of the use of lie detection techniques when establishing insanity.

Access the full site here.

 INTRODUCTION

There is increasing demand for psychiatric expert testimony in criminal proceedings. A person is responsible for his actions unless he is subject to the penal code, Section 34 h, insanity. Mental illness is not sufficient to determine insanity; it must be proven that the patient did not understand what he had done, did not comprehend the inappropriateness of his actions: or could not have avoided performing the deed. Opponents argue that the expert testimony is not scientific and not professional and alternatively that the mentally ill avoid responsibility even when there is no connection between the illness and the offence.

OBJECTIVES

The polygraph examination is an important instrument for confirming credibility of the testimony but it has not yet been investigated in the field of forensic psychiatry.

AIMS

To examine the validity of a polygraph examination in psychotic patients. To compare polygraph tests with psychiatric examinations.

METHODS

Patients were tested with a polygraph examination on there misjudged psychotic behaviour.

RESULTS

24 patients signed a consent form, but not all eventually participated. All patients received anti-psychotic medications. In general valid polygraph examination can be performed to patients with the psychotic illnesses (i.e. schizophrenia). Agitated or cognitive deprived patients tests were not reliable. The psychiatric examinations or the expert testimonies were in accord with the polygraph examination.

CONCLUSIONS

Preliminary data indicate that polygraph examinations are valid in patients with the psychotic illnesses. But not in agitated or cognitive deprived patients. Expert testimonies were found reliable in determining insanity.

 CAPTAIN PSYCHLITE

Psychlite

An interesting abstract to establish the validity of the use of lie detection techniques when establishing insanity.

Access the full site here.

 Introduction

There is increasing demand for psychiatric expert testimony in criminal proceedings. A person is responsible for his actions unless he is subject to the penal code, Section 34 h, insanity. Mental illness is not sufficient to determine insanity; it must be proven that the patient did not understand what he had done, did not comprehend the inappropriateness of his actions: or could not have avoided performing the deed. Opponents argue that the expert testimony is not scientific and not professional and alternatively that the mentally ill avoid responsibility even when there is no connection between the illness and the offence.

Objectives

The polygraph examination is an important instrument for confirming credibility of the testimony but it has not yet been investigated in the field of forensic psychiatry.

Aims

View original post 118 more words

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About SW Cali Commentary / Net Production

Jessica Zoe was born in Chicago, Illinois,” the windy city” where she spent the first 5 years of her life. She was raised in San Diego, but spent a brief time attending Jr. High school in Ireland where her extended family currently resides. Jessica graduated from Montana State University with a B.S. in Sociology / Anthropology. Soon afterwards she received a M.S. degree in Forensic Science from National University in San Diego. She also received a M.S. in Legal studies at the University of San Diego. Jessica’s favorite aspect of school is the sense of routine and accomplishment that she feels when she completes assignments and papers. The most challenging part of school has been realizing that most of the subject matter presented is best viewed "objectively". In other words, "don’t take all the material presented at face value". After college, Jessica spent several years working as a Legal Assistant for Construction Defect Attorneys in San Diego. She also worked as a Claims Adjuster for car accident attorneys as well. She then moved to north county where she worked in sales for the following 10 years. She has participated in all aspects of selling, from setting the appointment to closing the deal. Her favorite aspect of working has been the interaction with people. She enjoys socializing and is definitely a people-person. Jessica is currently working on her Doctorate of Education in Organizational Leadership, AKA EdD. where she hopes to network her way into the Forensic field to teach and consult. In Jessica’s spare time, she enjoys watersports and online publishing whenever she gets a break fromher current job in Commercial Transport. Jessica's current areas of interest for online self-publishing include: Industrial Automation | Hospital Protocols | Product Recalls | Legal Updates | Weatherizing & Climate | Environment | Space | Racing | Forensics | Sports & Event updates.

Discussion

One thought on “The validation of the polygraph examination in forensic psychiatry

  1. The article below was published in the now defunct magazine Gray Areas almost twenty years ago. (Vol. 4, No. 1, Spring 1995 pp. 75-77). Antipolygraph.og founder George Maschke noted in 2008 that article “makes a good introduction to the pseudoscience of polygraphy” and “the criticisms of polygraphy remain valid today.” They still do.

    http://disruptedphysician.com/2014/12/08/2689/

    http://disruptedphysician.com/2015/02/25/junk-science-in-the-medical-profession-the-resurgence-of-polygraph-lie-detection-in-an-age-of-evidence-based-medicine/

    Like

    Posted by Michael Lawrence Langan, M.D. | March 29, 2015, 1:20 am

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