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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
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Total Number of Programs: 98

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Law Enforcement Practice Outcomes at a Glance
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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.

Programs

Practices

OJP Publications

Design and Implementation of Forensic Facial Identification Experts Test, NIJ-Sponsored, 2020
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Fostering Innovation Across the U.S. Criminal System: Identifying Opportunities to Improve Effectiveness, Efficiency, and Fairness , NIJ-Sponsored, 2020
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Valuating Law Enforcement Data in the 21st Century: An Adaptive Mixed-Methods Approach, NIJ-Sponsored, 2020
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Gaps in Reporting Human Trafficking Incidents Result in Significant Undercounting, NIJ, August 2020
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Tribal Crime Data-Collection Activities, 2020, BJS, July 2020
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More OJP Publications

Questions and Answers

Where can I locate statistics on juveniles arrested on charges of driving under the influence?
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What is the government's plan to protect critical infrastructure within the United States?
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Have studies been conducted on New York City's "stop and frisk" policy?
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