Police are urging motorists not to leave their journey home programmed into their satellite navigation systems.
The warning came after thieves stole a sat nav from a car at Alton Towers theme park and used the device to find the owner’s house in Shropshire.
They then stole a £20,000 Saab convertible from the driveway.
Detective Sergeant Chris Walsh, from West Mercia Constabulary, said: ‘If your car is then broken into, particularly if you have an in-built sat nav as part of the dashboard, all the offenders have to do is search for ‘home’ or similar and it will take them right to the door of your empty residence.
‘In this case, the sat nav took them straight to the door of the victim’s house and they then stole a £20,000 convertible from the driveway. The vehicle was later recovered.’
Police said it was not enough simply to hide sat navs in the glove compartment or under a seat – drivers should take them out of the car altogether when parking.
‘If you must have a setting saved to get you home, only ever put your town in to get you back to familiar territory. Don’t use the postcode,’ Mr Walsh added.
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