Police: Suspect No.1

Return of the documentary following detectives on serious cases, from the very start of an investigation to the moment when they confront their suspects with the evidence. The opening edition follows a case in which three hooded men subject a family to a violent ordeal in their own home late at night.

A devastating rampage of distressing and targeted burglaries is terrorising the elderly and vulnerable around a single town. The MO is the same every time and the police are called out almost daily to yet another ransacked address, but the perpetrator evades them. Detectives quickly suspect that the break-ins might be the work of one man who is known to them, so Inspector Tom Smith and his CID team need to find and apprehend him fast - and that's not going to be easy.

A man is found badly beaten, with little recollection of what happened.

During a lads' night out, an interaction with a stranger leads to a violent attack that leaves one of them fighting for his life in hospital. Can police track down the assailant?

Violence erupts as young men armed with machetes engage in a brutal turf war over drug deals. Detectives must bring down the gang and find the man at the top.

With gangs flooding Norwich with drugs brought in across the county borders, specialist detectives raid a suburban home - but after a traumatic arrest, have they finally got the right man?