Missing or Murdered?

This episode examines the unsolved disappearance of a London teenager. Lee Boxell, was a 15-year-old from South London whose disappearance led to the longest forensic dig in Met police history. But his body was never recovered.

A look at the case of 35-year-old chef Claudia Lawrence, who disappeared in 2009 sparking one of the most high profile missing persons cases of recent years. The programme examines how media coverage of Claudia's private life impacted on the police investigation, and analyses theories of what really happened, including a recent possible sighting of her in Amsterdam and her mother's fears of sex trafficking.

The documentary focuses on the case of 19-year-old Luke Durbin, who vanished in May 2006 after a night out in Ipswich. He was captured on CCTV seemingly trying to find his way home, but he had left his phone and wallet at a friend's house, so taxis refused to take him and there were no buses or trains. For the first time, details about his involvement in drugs and drug-dealing are revealed. Could his disappearance be linked to a turf war?