Former FBI agent Scott Payne shares stories from nearly three decades undercover in biker gangs, neo-Nazi militias, and other criminal groups.

An FBI agent testified Wednesday that an undercover Houston Police Department officer spent years watching a game room ...

EXCLUSIVE: Sens. Ron Johnson and Chuck Grassley are demanding information from the Justice Department’s inspector general on whether any unassigned, or "untasked," confidential human sources from DOJ ...

The FBI ran the Elon Musk-themed undercover crypto laundering operation in a “shed-sized” post office for nearly a year.

FBI: International is soon headed toward its conclusion, and fans are enjoying the last few episodes of the police procedural ...