Interpol
The International Criminal Police Organization — a global body of 196 member countries that facilitates police cooperation across borders.
Founded in 1923 and headquartered in Lyon, France, Interpol provides secure communications channels, shared databases (fingerprints, DNA, lost travel documents, stolen art) and its colour-coded Notice system. It has no officers of its own who can arrest anyone; all policing is done by member-country forces. Each member country has a National Central Bureau (NCB) that serves as its point of contact with Interpol. The NCB is where national police submit notice requests, receive incoming requests from other countries, and coordinate operational responses. The US NCB is the FBI; Spain's is a division of the Policía Nacional.