NCJRS Library
The NCJRS Abstracts Database contains abstracts of more than 200,000 criminal justice, juvenile justice, and substance abuse resources housed within the NCJRS Library. Search the NCJRS Abstracts Database for resources on this topic.
Law Enforcement Programs at a Glance
Total Number of Programs: 98

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Law Enforcement Practice Outcomes at a Glance
Total Number of Practices: 13

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Randomized Controlled Trial (RCT) / Randomized Field Experiment

Refers to an experimental research design in which participants are randomly assigned to a treatment or a control group. Most social scientists consider random assignment to lead to the highest level of confidence that observed effects are the result of the program and not other variables.

Law Enforcement

Local, state, tribal, and federal law enforcement officers perform a number of prevention and enforcement functions and duties across the United States (U.S.). Examples of these include criminal investigation, patrol and call response, community-based crime prevention, corrections and detention supervision, court operations, and security or protection.



OJP Publications

Design and Implementation of Forensic Facial Identification Experts Test, NIJ-Sponsored, 2020

Fostering Innovation Across the U.S. Criminal System, NIJ-Sponsored, 2020

Valuating Law Enforcement Data in the 21st Century: An Adaptive Mixed-Methods Approach, NIJ-Sponsored, 2020

Just Science Podcast: Just a Statistical Approach to Glass Evidence, NIJ-Sponsored, May 2020
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Comprehensive Needs Assessment of Forensic Laboratories and Medical Examiner/Coroner Offices Points to Solutions for a System Under Stress, NIJ, May 2020

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Questions and Answers

Have studies been conducted on New York City's "stop and frisk" policy?
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Where can I find information on the Public Safety Officers' Benefits (PSOB) Program?
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Can I receive funding opportunity notifications via email?
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