Detectives from across the UK will be live in the Crimewatch studio ready to take your call.

Officers need viewers' help to track down the seemingly professional hitman who targeted a wealthy Russian banker in London's Docklands. With exclusive new CCTV of the assassin firing six times at point blank range, police hope someone watching will be able to identify him.

Plus, the inside story of how police caught a highly organised armed gang who, for five years, terrorised building societies across East Anglia, London and the South East. Dubbed the 'SAS Robbers' for their precision planning and commando style black outfits, they were convinced they were untouchable until the Met's Flying Squad caught them red-handed.

Presented by Sian Williams with Matthew Amroliwala and Martin Bayfield. Show less