Federal Investigation Bureau

The Federal Investagation Bureau is a Law Enforcement Agency and an enemy fraction in Grand Theft Auto V appearing as the secondary group of antagonists and the eleventh antagonists of the game. It is based of real life Federal Bureau Investigation (FBI).

Grand Theft Auto V
The FIB plays a major role in the game's storyline. It's known members are Steve Haines, Andreas Sanchez and Dave Norton who gives missions to Michael De Santa, Franklin Clinton, and Trevor Phillips who gives out attacks on IAA whom the FIB has huge rivalry with.