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Journal cover: Policing: An International Journal of Police Strategies & Management

Policing: An International Journal of Police Strategies & Management

ISSN: 1363-951X
Previously published as: Police Studies: Intnl Review of Police Development
Incorporates: American Journal of Police

Online from: 1997

Subject Area: Industry and Public Sector Management

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Predicting officer performance in motor vehicle stops: An example of the repeat phenomenon

Document Information:
Title:Predicting officer performance in motor vehicle stops: An example of the repeat phenomenon
Author(s):Lisa Growette Bostaph, (Department of Criminal Justice Administration, Boise State University, Boise, Idaho, USA)
Citation:Lisa Growette Bostaph, (2008) "Predicting officer performance in motor vehicle stops: An example of the repeat phenomenon", Policing: An International Journal of Police Strategies & Management, Vol. 31 Iss: 1, pp.19 - 35
Keywords:Criminology, Motoring offences, Operations management, Performance appraisal, Policing
Article type:Research paper
DOI:10.1108/13639510810852558 (Permanent URL)
Publisher:Emerald Group Publishing Limited

Purpose – This paper aims to explore the possible existence of the repeat phenomenon in police motor vehicle stops.

Design/methodology/approach – The study involved a mid-western police department. Data were collected from contact cards completed by police officers making motor vehicle stops between July 1, 2001 and December 31, 2001. Contact cards included information concerning the stop itself, driver, passengers, motor vehicle, and the officer making the stop. Individual identifiers of police officers allowed for an analysis of individual officer performance concerning motor vehicle stops. A Poisson process and logistic regression were used in the analysis.

Findings – Analyses revealed that motor vehicle stops are not randomly distributed across police officers and, in fact, a significant concentration of motor vehicle stops among few officers existed. Situational variables such as reason for the stop and time of the stop were significant predictors of high-performing officers.

Research limitations/implications – Limitations of the results include an immeasurable bias due to officers' discretion in completing contact cards for every motor vehicle stop, lack of external validity due to the specific circumstances surrounding the data collection, and the ‘time window effect’. Future research should focus on neighborhood level data collection, ‘hot spots’ for motor vehicle stops, the existence of high-performing (repeat) officers in field (pedestrian) stops, potential differences in racial disparity of motor vehicle stops across high- and low-performing officers.

Practical implications – The results of this study may offer insights into personnel and deployment practices based on officer performance.

Originality/value – This study is one of few on officer performance that included individual identifiers of police officers. This unique aspect of the data allowed for the analysis of a little-researched area: officer productivity in motor vehicle stops.

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