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: 102

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Law Enforcement Practice Outcomes at a Glance
Total Number of Practices: 12

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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

Post-Blast Investigative Tools for Structural Forensics by 3D Scene Reconstruction and Advanced Simulation, NIJ-Sponsored, 2019

National Institute of Justice Annual Report 2016, NIJ, June 2019

Just Science: 2019 NIJ R&D: Just Detecting Gunshot Residue, NIJ-Sponsored, June 2019
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Girls in the Juvenile Justice System, OJJDP, May 2019

Conducted Energy Devices: Policies on Use Evolve to Reflect Research and Field Deployment Experience, NIJ, May 2019

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Questions and Answers

What is community policing?
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Where can I find information pertaining to U.S. efforts to combat drugs internationally?
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Where can I locate resources to assist my police department with diversity hiring practices?
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