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: 100

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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

AMBER Alert Best Practices Guide, Second Edition, OJJDP, April 2019

Policing Research If You Can't Find It, Do It, NIJ, April 2019
HTML Video

Expert Panel Creates Investment Road Map to Guide Development of Powerful Video Analytics and Sensor Fusion Surveillance Technologies, NIJ, April 2019

Impact of Flashover Fire Conditions on Exposed Energized Electrical Cords and Cables , NIJ-Sponsored, April 2019

Impact of Fixed Ventilation on Fire Damage Patterns in Full-Scale Structures, NIJ-Sponsored, April 2019

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Questions and Answers

Where can I locate resources to assist my police department with diversity hiring practices?
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How can I obtain a copy of Violent Encounters: Felonious Assaults on America's Law Enforcement Officers?
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Can I receive funding opportunity notifications via email?
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