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Operational psychology and cold case investigations in New Zealand
Nathan Brooks1, Shreena Natasha Hira1
1Behavioural Science Unit, New Zealand Police, Auckland, New Zealand.
Purpose:
The purpose of this paper is to examine the application of psychology to the investigation of cold cases. The paper reviews the development of the discipline of operational psychology and reviews the role of the Behavioural Science Unit in assisting with cold case investigations within New Zealand.
Design/Methodology/Approach:
The paper integrates theory, academic principles, and practical investigative experience.
Findings:
As a field, operational psychology has a wide application to cold case investigations. The main areas where expertise can be provided, includes, indirect assessment and personality profiles, offender profiling, crime analysis, victimology and equivocal death analysis, and in the interviewing and engagement of offenders. Operational psychology advice should be based upon sound reasoning, evidenced based conclusion, and within the bounds of practitioner competence. Psychologists should seek to educate investigators on probabilities, likelihoods and error rates, and endeavour to indicate the strength of conclusions and statements provided within a report.
Originality/Value:
The review aims to provide the necessary and relevant impetus for integrating operational, or forensic psychology expertise into cold case investigations. The application of psychological science to police investigations has been subject to numerous academic commentaries, however, there is a dearth of involvement from practitioners practicing in the field.
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