Police in Derry City & Strabane have received seven new tint meter devices.
Legally, vehicles must allow at least 75% of light through the front windscreen and 70% of light through the front side windows.
Strabane Neighbourhood Policing Team Sergeant Ryan Johnston says in Strabane recently, one vehicle had a reading of just 12%
Police are appealing to motorists to adhere to the law, as tinted windows can impair a drivers vision and is a hazard.
