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.).