Since the 1970s, NIJ research and standards on body armor have protected law enforcement officers. A new Selection and Application Guide to Ballistic-Resistant Body Armor incorporates the latest research to inform purchasing and maintenance policies for NIJ-compliant body armor.

Read the guide.

In an article from the Justice Research and Statistics Association Forum, NIJ grantees Amy Farrell and Jack McDevitt explore the challenges that state and local law enforcement face in identifying, investigating and prosecuting human trafficking cases.

Read the article.

Learn more about NIJ’s human trafficking research.

Countering Violent Extremism

Researchers discuss which factors may cause someone to go from illegal behavior to violent terrorist behavior and how community policing can counter violent extremism.

Learn more about NIJ's research on domestic radicalization.

Are you a radicalization researcher? Apply for funding.

Rockefeller Drug Law Reform


The last in a series of reforms to the Rockefeller Drug Laws in 2009 led to a 35 percent increase in the rate of diversion to treatment as well as a decrease in custodial sentences in New York City. Implementation, however, varied widely across boroughs and custodial sentence lengths increased.

Read the policy brief Exit Notice.