The programme that asks you, the viewer, to turn crimefighter.
With Nick Ross and Sue Cook.
Six weeks ago London supermarket manager Steve Whitnell was shot dead in front of his girlfriend. Ten days before he'd confronted an armed gang at the store.
Detectives believe the attacks may be linked and need your help to catch his killer.
In Hertfordshire just before Christmas two customers inspected an expensive bracelet in a high street jewellers. The next day they returned with revolvers and robbed the staff of gems worth £500,000.
You may think your recollection is unimportant, but recent calls from Crimewatch viewers have led to a number of arrests and convictions. Detectives and BBC researchers are waiting for your calls.
Police officers David Hatcher and Helen Phelps report from the Incident Desk. If you can help, call Crimewatch on [number removed] anytime from 9.30 pm until midnight.
(Crimewatch Update at 11,10pm)
Details on Ceefax Page 186