U.S. flag

An official website of the United States government, Department of Justice.

Police research

How Collaboration Between Researchers and Police Chiefs Can Improve the Quality of Sexual Assault Investigations: A Look at Los Angeles

June 2011

Panelists discuss the application of research findings from an NIJ-sponsored study of sexual assault attrition to police practice in Los Angeles. There are three main focal points: (1) the mutual benefits of researcher/practitioner partnerships, (2) the implications of variation in police interpretation of UCR guidelines specific to clearing sexual assault (with an emphasis on cases involving nonstrangers), and (3) the content of specialized training that must be required for patrol officers and detectives who respond to and investigate sex crimes.

From the Academy to Retirement: A Journey Through the Policing Lifecycle

December 2009

Professor Rosenbaum and a panel of colleagues discuss a study to demonstrate the feasibility of creating a foundation from which to launch studies about multiple aspects of policing using standardized definitions and measurement tools. Their goal is to advance knowledge about policing and translate data into evidence-based best practices that improve training, supervision and accountability systems. The effort is expected to produce a better understanding of what motivates police officers and makes them healthier, happier and more effective.

Don't Jump the Shark: Understanding Deterrence and Legitimacy in the Architecture of Law Enforcement

November 2010

Deterrence theory dominates the American understanding of how to regulate criminal behavior but social psychologists' research shows that people comply for reasons that have nothing to do with fear of punishment; they have to do with values, fair procedures and how people connect with one another. Professor Meares discussed the relevance of social psychologists' emerging theory to legal theory and practice and how deterrence and emerging social psychology theories intertwine.

The Evaluation of NIJ by the National Research Council of the National Academy of Sciences: NIJ's Response

June 2011

The National Academies conducted a comprehensive evaluation of the National Institute of Justice. This panel provides an overview of the evaluation and NIJ's response to it. NIJ has accepted many of the recommendations in the NRC report, and you will learn what the agency is doing to implement them. A few of the recommendations were challenging and created considerable debate within NIJ. Plans to address these thorny issues also are discussed.

The NIJ/IACP Partnership

January 2016

This video, featuring NIJ Director Nancy Rodriguez and Hassan Aden of the International Association of Chiefs of Police (IACP), describes the partnership between NIJ and IACP and how the two organizations are linking what we know about what works in policing to the field.

NIJ’s Law Enforcement Advancing Data and Science (LEADS) Program

March 2016

This video, featuring NIJ Director Nancy Rodriguez, Hassan Aden of the International Association of Chiefs of Police (IACP), and two scholars from the 2014 Law Enforcement Advancing Data and Science (LEADS) program, describes the LEADS program, how NIJ and IACP are building the next generation of law enforcement leadership, and how the program has benefited the scholars.

Backlogs and Their Impact on the Criminal Justice System

June 2010

Evidence backlogs have been known to be an issue in crime laboratories. A recent study published by NIJ has shown that backlogs of untested evidence are also an issue in law enforcement evidence storage. This panel will discuss the issues and present preliminary findings from a study of the Los Angeles Police Department's and Los Angeles County Sheriff's Department's experience with clearing out a large backlog of unanalyzed rape kits.

A View From the Street: Police Leaders Share Their Perspectives on Urgent Policy and Research Issues

June 2010

Sponsored by the International Association of Chiefs of Police (IACP) and its Research Advisory Committee (RAC), this panel unites law enforcement leaders from across the country to discuss their policy and research concerns. Charles Wellford, IACP RAC co-chair and University of Maryland professor, will facilitate the panel. Presenters will discuss urgent policing issues that merit ongoing research, law enforcement and academic research partnerships, and how research can and does affect agency policy and operations.

Are CEDs Safe and Effective?

June 2010

Thousands of law enforcement agencies throughout the United States have adopted conducted energy devices (CEDs) as a safe method to subdue individuals, but are these devices really safe? What policies should agencies adopt to ensure the proper use of this technology? This NIJ Conference Panel discusses the physiological effects of electrical current in the human body caused by CEDs, as well as how this technology can reduce injuries to officers and suspects when appropriate policies and training are followed.

Situational Approaches to Making Communities and Correction Institutions Safer - Panel at the 2010 NIJ Conference

June 2010

NIJ Conference panelists will present the results of three studies that applied situational crime prevention (SCP) principles: (1) an evaluation of the Safe City initiative in Chula Vista, Calif., designed to combine the expertise and resources of local law enforcement, retailers and the community to increase the safety of designated retail areas; (2) a randomized controlled trial (in partnership with the Washington Metro Transit Police) that assessed the effectiveness of SCP to reduce car crime in Metro's parking facilities; and (3) an evaluation of the impact of SCP

Using License Plate Readers to Fight Crime

June 2010

This is a joint panel of NIJ's Office of Research and Evaluation (ORE ) and Office of Science and Technology (OST). Panelists will discuss the latest efforts to implement license plate reader technology into policing operations. OST grantees will explain various aspects of the technology and an ORE grantee from the National Opinion Research Center will present findings from a study on the use of license plate readers to combat auto theft in Arizona.

What Is Research and Evaluation Evidence and How Can We Use It?

June 2010

This NIJ Conference Panel will explore the development and use of evidence-based policies, programs and technologies to improve effectiveness and efficiencies related to government. Through casual observation, practices and programs may appear to be effective, but under closer scrutiny the results may look much different.

LEADS Scholar Spotlight - Optimal Investigator Caseloads

October 2018
Daniel Stewart, a captain in the Oklahoma City Police Department and Class of 2016 Scholar of NIJ’s Law Enforcement Advancing Data and Science (LEADS) Program, discusses research he has conducted on investigator caseloads as commander of a property crimes unit with his police department. He also speaks about the impact of the LEADS program and network on his research and professional career.

LEADS Scholar Spotlight - American Society of Evidence-Based Policing

October 2018
Joshua Young, a retired corporal of the Ventura Police Department in California and Class of 2015 Scholar of NIJ’s Law Enforcement Advancing Data and Science (LEADS) Program, discusses the American Society of Evidence-Based Policing, which encourages the use of data and research to inform policing. He also talks about a randomized control trial he conducted on body-worn cameras and the support he has received from the LEADS program.

NIJ's 50th Anniversary - Looking Back, Looking Forward

August 2018
NIJ’s 50th anniversary is an opportunity to reflect on how far the Institute has come, as well as its direction and priorities moving forward. In this Research for the Real World event, panelists will speak to the history and future of the Institute, drawing from decades of experience working for and closely with NIJ. Two Former NIJ Directors will reflect on their days heading the agency and their observations on how the agency has changed over time.

How Best Protect Your Force Against Officer Suicide

May 2017
John Violanti, Research Professor at Buffalo, discusses the importance of making police departments aware that officer suicide is a problem. According to Violanti, police officers have a significantly higher rate of suicide than the general public. Reasons for this higher risk include the accumulative effects of trauma and stress.

Violanti describes steps police agencies are taking to help police officers, including teaching recruits what they may experience on the job.

Examining Police Officer Crime

February 2017
Dr. Philip Stinson, Bowling Green State University, discusses the findings of his research on crimes committed by police officers.

Based on the research findings, law enforcement officers appear to commit crimes at a much lower rate than the general public. However, in some cases, at times due to the stressors of the job and frequent exposure to trauma and violence, officers engage in misconduct or criminal behavior.

Police Officer Crimes and Police Integrity

February 2017
Dr. Philip Stinson, Bowling Green State University, discusses the findings of his research on crimes committed by police officers.

However, in some cases, at times due to the stressors of the job and frequent exposure to trauma and violence, officers engage in misconduct or criminal behavior. The National Institute of Justice understands what’s at stake for public safety and officer wellness when we ignore warning signs of officers struggling with occupational hazards and other psychological hardships.

The Importance of Victim Cooperation in Solving Sexual Assaults

April 2014

Interview with Dr. Bill Wells, Ph.D., Sam Houston State University

Watch Bill Wells discuss the problem of unsubmitted sexual assault kits in Houston, including some lessons learned to-date. Dr. Wells also talks about the crucial role of victim cooperation in solving sexual assault cases and the Houston Police Department's hiring of a justice advocate to improve investigations.

Game Change: How Researcher-Practitioner Partnerships Are Redefining How We Study Crime

June 2012

Opening Plenary Panel
When researchers and practitioners work side by side, they can maximize their problem-solving abilities. The research partner can focus on the data and the science; the practitioner can focus on interpreting the findings and applying them in the field. In the plenary panel, panelists described the benefits, challenges and pitfalls of researcher-practitioner partnerships with a focus on the financial benefits to the practitioner.

Moderator: John H. Laub, Director, National Institute of Justice

Panelists:

Protecting our Protectors: Using Science to Improve Officer Safety and Wellness

June 2012

Each year, 100-200 law enforcement officers die in the line of duty. Last year, 177 lost their lives — a 16-percent increase from 2010. As Attorney General Eric Holder noted, this is a devastating and unacceptable trend. NIJ has developed a robust research portfolio to improve officer safety and wellness and, ultimately, save lives. This panel discussed some of NIJ's most promising work to reduce shooting and traffic-related fatalities — consistently the leading causes of officer line-of-duty deaths — and improve officer wellness, which is inextricably linked with officer safety.