Bedfordshire Police has been urging drivers to securely lock their car doors in order to avoid thefts.
The warning comes after several cases of theft from vehicles in the Castle Road area of Bedford town were reported, highlighting the need for at least a Third Party Fire and Theft (TPFT) car insurance policy.
The incidents involved motorists returning to their vehicles to find them insecure and property missing, even when the drivers maintain that they had properly locked the car when leaving it.
PC Peter Spicer, crime reduction officer, said: "Motorists should lock their car when they are close to it, look out for the hazard lights activating and listen for the distinctive sound of the locks applying.
"Take the time to try the door handle just to make sure and, of course, never leave anything tempting on view in the car."
Some of the preventive guidelines the police have been urging motorists to follow are to lock doors and ensure that windows and sunroofs are completely shut, and to physically verify that the doors are locked.
Bedfordshire Police is also asking drivers to park in a well-lit space during the night, and to use an alarm or other security devices to protect the vehicle.
Drivers have also been warned not to leave behind bank cards, sat navs or mobile phones in their cars, not even in the boot of the vehicle.
© Press Association 2010