The International Association of Chiefs of Police is the world's oldest and largest nonprofit membership organization of police executives, with over 20,000 members in over 100 different countries.

The International Association of Directors of Law Enforcement Standards and Training (IADLEST) is an international organization of training managers and executives dedicated to the improvement of public safety personnel.

Since 1953, the Federal Criminal Investigators Association (FCIA) and its predecessor organizations have served the needs and addressed the concerns of the federal investigative community.

The Officer Down Memorial Page, Inc., (ODMP) is a non-profit organization dedicated to honoring America's fallen law enforcement heroes.

COPNET is a collection of Law Enforcement Internet resources.

PARC is a non-profit organization that, in cooperation with monitors, law enforcement executives, civic and government officials, community groups, and other interested constituencies, aims to strengthen police oversight.

The purpose of the Police Foundation is to help the police be more effective in doing their job.

The police source. Leading news and information source for the police, law enforcement community.

Resource for Police Officers and Law Enforcement Professionals, with News, Videos, Products, Training, Jobs and Career Resources, Awards and Grants.

A Police & Law Enforcement Search Engine and Directory.

A real cop site by real cops. Dedicated to the men and women in blue.

The FBI Law Enforcement Bulletin is published monthly by the Federal Bureau of Investigation.

The Police Chief is published monthly by the International Association of Chiefs of Police.

Non-profit corporation, organized to offer law-abiding citizens an "organized voice" regarding this country's crime problem.

The Academy of Criminal Justice Sciences (ACJS) is an international association established in 1963 to foster professional and scholarly activities in the field of criminal justice.

The American Correctional Association is the oldest and largest international correctional association in the world.

A national nonprofit organization dedicated to supporting those who work in and operate our Nation's jails.

ILEETA was formed in 2002 to serve the needs of criminal justice trainers and educators throughout the world.

IALEIA is the largest professional organization in the world representing law enforcement analysts.

The IPA is the largest and oldest worldwide fraternal police organization.

The National District Attorneys Association is the oldest and largest professional organization representing criminal prosecutors in the world.

The National Internal Affairs Investigators Association is a growing professional association of internal affairs investigators from departments from throughout the United States and Canada .

NSA represents thousands of sheriffs, deputies and other law enforcement, public safety professionals, and concerned citizens nationwide.

The Police Executive Research Forum (PERF) is a national membership organization of progressive police executives from the largest city, county and state law enforcement agencies.

The United States Police Canine Association is the largest and oldest active organization of its kind.

Established in 1972, NCJRS is a federally funded resource offering justice and substance abuse information to support research, policy, and program development worldwide.

The Office of Juvenile Justice and Delinquency Prevention (OJJDP) provides national leadership, coordination, and resources to prevent and respond to juvenile delinquency and victimization.

The Bureau of Justice Assistance (BJA) is a component of the Office of Justice Programs, U.S. Department of Justice.

NIJ is the research, development and evaluation agency of the U.S. Department of Justice.

Established in 1988 through an amendment to the Victims of Crime Act (VOCA) of 1984, OVC is charged by Congress with administering the Crime Victims Fund (the Fund).

The mission of the Community Capacity Development Office (CCDO) is to work with local communities to design strategies for deterring crime, promoting economic growth, and enhancing quality of life.

The SMART Office was authorized in the Adam Walsh Child Protection and Safety Act of 2006, which was signed into law on July 27, 2006.

The Office of Justice Programs (OJP) provides innovative leadership to federal, state, local, and tribal justice systems, by disseminating state-of-the art knowledge and practices across America, and providing grants for crime fighting strategies.

The National Institute of Corrections is a center of learning, innovation and leadership that shapes and advances effective correctional practice and public policy.

The White House Office of National Drug Control Policy (ONDCP), a component of the Executive Office of the President, was established by the Anti-Drug Abuse Act of 1988.

IIR provides comprehensive research and education services to a broad range of functions in the public safety domain and also provides assistance to the private sector.

The Office of Justice Programs’ CrimeSolutions.gov uses rigorous research to inform practitioners and policy makers about what works in criminal justice, juvenile justice, and crime victim services.