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National Institute Of Justice (NIJ) (Washington DC)

"To date, little research is available to help law enforcement executives decide whether and how to implement the use of body-worn cameras in their departments." This website provides access to information that will help in making these decisions. Topics discussed on this website are organized according to: research on body-worn cameras and law enforcement; ongoing NIJ-funded research on body-worn cameras; Primer on Body-Worn Cameras for Law Enforcement; market survey of body-worn cameras for criminal justice; and other resources.

Equipment and Technology Research on Body-Worn Cameras and Law Enforcement Cover

"Hawai'i’s Opportunity Probation with Enforcement (HOPE) Hawai'i’s Opportunity Probation with Enforcement probation relies on a regimen of regular, random drug testing tied to swift and certain, but modest, sanctions to motivate probationer compliance. In two 2007 studies in Hawai'i, a comparison-group quasi-experiment and a randomized controlled trial, HOPE was demonstrated to improve compliance with terms of probation at 12-month followup, with large reductions in drug use, recidivism, and overall incarceration for offenders assigned to the program … This study extends the original HOPE evaluations to an almost ten-year followup, addressing whether the improvements in criminal-justice outcomes observed during the active HOPE intervention persist after the term of probation. The study also documents changes in HOPE practices and ongoing implementation fidelity to the model … HOPE probationers performed better than those supervised under routine supervision. They were less likely to be revoked and returned to prison" (p. 2-3).


In this publication, the National Institute of Justice (NIJ) explores the feasibility of mobilizing an “organizational accident,” learning-from-error approach in the criminal justice system. We introduce the notion of the “sentinel event”: a bad outcome that no one wants repeated and that signals the existence of underlying weaknesses in the system.

Mending Justice: Sentinel Event Reviews Cover

This website provides access to materials related to the National Institute of Justice’s Multisite Adult Drug Court Evaluation (MADCE). You should look at the information provided here If you are thinking of implementing or improving drug courts in your jurisdiction. Sections cover: description of the evaluation; research questions; data collection; and links to results from the evaluation (publications, dataset, and presentations).

NIJ’s Multisite Adult Drug Court Evaluation Cover

This report covers research related to domestic violence. Eight sections make up this document: overview; reporting and arrests; perpetrator characteristics; victim characteristics; law enforcement responses; prosecution responses; judicial responses; and intervention programs.

Practical Implications of Current Domestic Violence Research:  For Law Enforcement, Prosecutors and Judges Cover

“As ever-increasing numbers of offenders are supervised in the community — witness the massive “realignment” of prisoners in California — parole and probation departments must find the balance between dwindling dollars and the lowest possible risk to public safety. The good news is that researchers and officials in Philadelphia, Pa., believe they have developed a tool that helps find that balance” (p. 4). This article explains how your jurisdiction can use a random forest risk-forecasting tool. Sections of this article cover: what random forest modeling is; pre-random forest times; getting started; forecast begin- and end-points; determining an acceptable error rate; accuracy; the benefits of random forest modeling; resources, equity, and fairness; the role of ethics in statistical forecasting; the key—a strong partnership; and recommendations from the research.

Predicting Recidivism Risk: New Tool in Philadelphia Shows Great Promise Cover

The "authors discuss the long-term and unintended consequences of criminal justice financial obligations (CJFOs): fines, forfeiture of property, court fees, supervision fees, and restitution." [They] "describe trends in the assessment of CJFOs, discuss the historical context within which these trends have unfolded, and reflect on their unintended (but perhaps easily foreseen) consequences. We then treat restitution separately, given the distinct function (in theory at least) that restitution serves. We also raise serious concerns about how restitution tends to be implemented and who benefits from this particular obligation. We end by considering alternative models for the effective and fair deployment of fines, fees and restitution in the criminal justice context" (p. 2).

Shackled to Debt Cover

This is an excellent article if you want to understand how inmates feel about incarceration. "A new theoretical framework looks at punishment from the prisoner's perspective and reveals how the lived experience of punishment differs from the punishment conceived by lawmaker" (p. 1). Sections cover: what punishment is; the salience and severity of punishment; narratives of penal consciousness; the role of supervision style and gender; and potential policy implications.

Through Their Eyes: How Prisoners Make Sense of Their Incarceration Cover


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