The number plates were removed from a car parked in Muff last week.
The incident is believed to have occurred at around 11am on December 27.
The car was parked at a car park on Main Street, Muff.
Gardai say that the front and rear number plates were stolen from the vehicle and have issued an appeal for information.
Officers are particularly interested in people who travelled in Muff village or who travelled in the direction of Quigley’s Point and say that dash cam footage could be invaluable.
Anyone with any information is asked to contact Buncrana Garda Station on (074) 932 0540 or the Garda Confidential Line on 1800-666111.
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