FBI established security clearance initiative after 9/11. Most law enforcement information can be shared unclassified. Clearances available at Secret or Top Secret levels
Established on April 10, 1845 as state agency for internal security. Operates under civil administration system with governors and district governors. Comprises central organization and 81 provincial police departments
Founded in 1829 by Sir Robert Peel as territorial police force in London. Currently headquartered at New Scotland Yard on Victoria Embankment. Largest police force in UK by officer numbers. Operates under Mayor's Office for Policing and Crime since 2012
Supo was founded in 1948 to replace the State Police. Initially focused on monitoring communists and preventing KGB espionage. Maintained close connections with CIA despite caution
First modern police force established in mid-19th century. Nationalized in 1965, reorganized into unified authority in 2015. Organized into seven regions and eight national departments. Currently has approximately 34,000 employees, including 75% police officers
Police existed since nation's birth, according to President Kennedy. Colonial America had informal, private-funded night watch system. Night watchmen often slept and drank while on duty. Early policemen avoided badges due to negative reputations