Examining the shocking cases where perpetrators have tried to feign innocence, deceiving the police and the public on missing persons and murder crimes they committed.

In 1985, Jeremy Bamber shot his parents, his sister and her twin sons. He protested his innocence - what do his messages from prison reveal?

One man's claims about a VIP paedophile ring threatened to destroy the reputation of some of Britain's most powerful people. But, was he telling the truth?

Christopher Halliwell is known to have killed two young women. Experts analyse his police interviews to assess whether he is responsible for more unsolved disappearances.

A young father returns to England after his wife and baby daughter are found shot dead at their US home. What really happened? Experts analyse his behaviour.

Why was Aram Kurd the only person to survive an explosion at his supermarket that killed five people? Experts identify his deception in TV and police interviews.

Craig Savage claims he never intended to kill his estranged wife and her mother and that his gun had gone off by accident. His body language tells a different story.