A 14-year-old Fairfield boy was arrested after allegedly ramming an officer's car and not paying for petrol, police say.
Mosgiel police tracked a car to a nearby street with the assistance of the public, after a report at 11.40am today that it had left a BP service station without paying for fuel.
As the police car turned into the street it was rammed by the offending car. Both vehicles sustained moderate damage and became immobilised.
There were no injuries.