Hard evidence. Hard Science. Whether it handles bullets or bombs, fingerprints or fibres, the FBI's crime lab - the largest such facility in the world - takes on tough cases, grappling with fraud, drug trafficking, kidnapping and murder, extortion and terrorism. Produced with the full co-operation of the Federal Bureau of Investigation and introduced by James Kallstrom. The FBI files takes viewers behind-the-scenes of major crime investigations and enters what, until now, has been the world's least accessible crime lab. Through dramatic re-enactments and interviews with agents and scientists, viewers witness the actual process of some of the FBI's most famous investigations. And as the agents gather seemingly unremarkable clues, they transform them into hard evidence - the kind of evidence that brings a criminal to justice.