U.S. flag

An official website of the United States government, Department of Justice.

NCJRS Virtual Library

The Virtual Library houses over 235,000 criminal justice resources, including all known OJP works.
Click here to search the NCJRS Virtual Library

Effectiveness of License Plate Readers for Patrol and Investigations

NCJ Number
254773
Journal
THE POLICE CHIEF Dated: September 2018 Pages: 14-15
Author(s)
Christopher S. Koper; Cynthia Lum
Date Published
September 2018
Length
2 pages
Annotation
This article discusses the effectiveness of license plate readers for use in police patrol.
Abstract

License plate readers (LPRs) have spread rapidly in policing and are now used by an estimated two-thirds of large agencies in the United States (as well as many small agencies) for a range of patrol, investigative, and security operations. Although LPRs have been shown to increase arrests and recoveries of stolen vehicles, their wider impacts on crime prevention and investigations are unclear, since the rigorous evaluation of LPRs has been very limited. Outcomes from LPR use are likely to depend on several factors, including the volume of LPR deployment, the manner in which LPRs are deployed (mobile versus fixed), the types of data accessed by LPR systems, how officers use LPRs in the field, how data are saved and used for investigations, and the public's reaction to LPR use. Hence, there is a strong need to build an evidence base to guide law enforcement decisions on LPR acquisition and use. With support from the National Institute of Justice, the authors have conducted two new field studies of LPR use in patrol and investigations. (publisher abstract modified)

Grant Number(s)
Sponsoring Agency
Bureau of Justice Statistics (BJS)
Address

999 N. Capitol St. NE, Washington, DC 20531, United States

Corporate Author
Center for Evidence-Based Crime Policy
Address

George Mason University, 4400 University Drive, MS 6D12, Fairfax, VA 22030, United States

Publication Format
Article
Publication Type
Research (Applied/Empirical)
Report (Study/Research)
Report (Grant Sponsored)
Program/Project Evaluation
Program/Project Description
Language
English
Country
United States of America