Three people died in a fire at a house in Northampton. Police now know it was arson and are hoping a viewer may recognise the distinctive car seen near the scene of the crime. In Salisbury a gang used specialist drilling equipment in a quarter of a million pound robbery of a post office. Several witnesses may not have realised they saw a crime in progress and could supply crucial clues. And the tragic murder of 84-year-old Ivy Batten at her home near Honiton in Devon. A pair of gloves and other clues left behind could prompt viewers to lead police to her killer.