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: 97

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Law Enforcement Practice Outcomes at a Glance
Total Number of Practices: 11

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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

Just Science: Identification: Just the Sole of Impression Pattern Evidence, NIJ-Sponsored, February 2019
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Using Data to Drive Down Traffic Fatalities, NIJ, February 2019

Employing Evidence to Combat Everyday Tragedy, NIJ, February 2019

Tackling Gun Violence as a Community Issue, NIJ, February 2019

Federal Justice Statistics, 2015-2016, BJS, January 2019

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Questions and Answers

Where can I locate statistics on juveniles arrested on charges of driving under the influence?
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Where can I find statistics on the number of juveniles arrested in the United States?
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What is the Congressional Badge of Bravery (CBOB)?
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