If you find yourself in the market for a new car in the Vancouver area, make sure you double-check it for scratches before you buy it. reports that a woman has been going around to local dealerships and cars for reasons unknown.

Royal Canadian Mounted Police say from the period of January to April of this year, an unknown woman has been going around performing “mass car keying incidents.” So far the incidents have happened at just one dealership, Journey Chrysler Jeep Dodge and Ram in Port Coquitlam, 17 miles east of Vancouver.

Surveillance footage shows her keying each of the over 400 cars. So far authorities say she’s caused CAD $500,000 (Just over $370,000) in damages.

In the footage, the woman is concealed with a getup consisting of a surgical mask, glasses, gloves, and a beanie. Authorities believe she’s a Caucasian female with blonde hair and is around 40-50 years old. Police say they believe her car is a second-generation Ford Escape.

A released by the Royal Canadian Mounted Police Corporal Alexa Hodgins says. “It is clear in the videos that the suspect was deliberately scratching the vehicles one-by-one. Our investigators are continuing to follow up on any investigational leads, but are requesting the assistance from the public in identifying the suspect.”