Our Work

The Knowledge Lab will serve as a reliable national resource to improve public safety through effective crime-fighting strategies, robust constitutional policing, and stronger community relationships. The Knowledge Lab will collaborate with stakeholder organizations, researchers, and agencies to leverage and share resources and guidance already developed within these professional networks and work to create resources where they are needed.

Ensure police agencies, stakeholders, and communities have the resources and information necessary to implement effective public safety strategies, policies, training, and programs that: comport with the requirements and ideals of the U.S. Constitution; are supported by state-of-the-art knowledge and research evidence; improve the organizational and individual performance to meet the challenges of the 21st Century better, and strengthen public trust in the criminal justice system.

Guiding Principles

In April 2022, the Justice Department launched the National Law Enforcement Knowledge Lab ("the Knowledge Lab"), a first-of-its-kind resource hub to identify and publicly disseminate fair and effective policing practices, training, and technical assistance at no cost.

With over 18,000 police agencies throughout the United States, it is difficult to learn about effective programs, policies, and procedures that may help a jurisdiction address crime in a manner that reflects the ideals and requirements of the Constitution, adapt to changes in the law or improve the capabilities of an organization. The Knowledge Lab is an effort to collect and make available the many ideas and innovations that could help agencies seeking to improve their ability to protect and serve their communities in adherence to the requirements and ideals of the Constitution.

Any community may engage with the Knowledge Lab to access information and expert assistance about implementing effective, evidence-informed, and constitutionally-based law enforcement approaches that reduce crime, strengthen public trust, and support equal access to justice.


The United States Constitution is the foundation for fair and effective policing. The policies, procedures, and programs developed or shared by the Knowledge Lab support and advance the Constitution's principles, ideals, and requirements, as well as their intersection with 21st-century policing practice. It includes lessons identified from successful policing reform and improvement efforts. This includes programs and structural changes required through civil rights enforcement efforts and provides guidance on effective approaches to policing activities driven by Constitutional requirements and concerns (e.g., use of force, citizen stops, first amendment activities, etc.).