The Search Bloc (Spanish: Bloque de Búsqueda) was the name of three Special Operations units of the National Police of Colombia (Policía Nacional de Colombia). They were originally focused on capturing (or killing) a particular individual or group of individuals.
The original Search Bloc was created in 1992 by the President, Cesar Gaviria. Search Bloc officers were assembled with the sole objective of the apprehension of drug lord Pablo Escobar and his associates. Its original commander was Colonel Hugo Martinez.
The members of Search Bloc received training from the U.S. Army's Special Forces and were specially selected for being impervious to police corruption from the drug cartels. Throughout its mission, Search Bloc faced many obstacles such as a spy within the group, allegations of collaboration with the anti-Escobar vigilante groups such as Los Pepes, which would have included vigilantism within Search Bloc pertaining to suspicious deaths of Escobar's subordinates.
Escobar was killed on December 2, 1993 in a shootout with members of Search Bloc.