The Central Intelligence Agency or CIA is a government agency that appears in the Grand Theft Auto series. They appear in Grand Theft Auto III, Grand Theft Auto: San Andreas, Grand Theft Auto IV (and its Episodes), and Grand Theft Auto: Chinatown Wars.
Grand Theft Auto III
In GTA III, their first appearance is in the mission Evidence Dash, where a CIA agent drives a Bulletproof Bobcat. The CIA also monitors the Shoreside Lift Bridge when Ray Machowski tries to flee the city by flight. They are also said to have an interest in the Cartel manufactured drug SPANK. Weapons include M-16s, and Micro-Uzis. They are portrayed as men with light skin, and dark clothes. These also appear as random pedestrians.
Grand Theft Auto: San Andreas
In 1992 they make another appearance when CJ attempts to obtain a package for Mike Toreno, and when he has to bomb a plane containing a consignment of land mines. While on board the Andromada plane they utter strange phrases that is speculated evidence of UFOs and aliens in the game.
In GTA: San Andreas they appear with two different agents. One with light skin, black suit and tie, gray hair, and dark sunglasses. The other agent has dark skin, a black suit with a black tie, black hair and mustache, and black sunglasses, also this agent never talks to Carl unlike the other one. These two could be a reference to the film "Men In Black", or Rockstar Games placed them there to go along with the alien theme out in the desert. They have AK-47s along with the Micro Uzis. Their vehicles for are special black Mavericks and a special black Bobcats.
Grand Theft Auto IV
Grand Theft Auto: Chinatown Wars
Unlike other games, in GTA: CW the agency was renamed to Agency of Centered Intelligence. Players receive the "Platinum Syringe" trophy for services rendered in powders (Cocaine and Heroin) distribution.