Casey Crime Investigation Unit detectives are reminding people to take precautions with their possessions, after a car was stolen from a garage in Berwick late last month.
Police believe the garage door of a property on Avebury Drive Berwick was forced open about 11.30pm on 28 June.
The thieves were able to steal the silver Mazda 3 from the garage because the car keys were left inside the vehicle.
The occupants of the house were home at the time, but did not see the person or people who stole the car.
Any witnesses or anyone in the area with CCTV footage from that night is urged to contact Casey CIU on 9705 3111 or Crimestoppers on 1800 333 000.