"They are typically expensive items, and mounted in a visible position in front windscreens of vehicles, so they make an easy and obvious target for opportunistic offenders."
She said police would advise anyone using any kind of expensive item in their vehicle to remove it every time they leave the car and ensure their vehicles are well-secured.
It follows a post on the Bishopdale Community Group on Facebook on Monday which attracted more than 50 comments.
"Keep an eye out for this person and silver BMW. Scouted our small cul de sac in Nunweek Park at 4.57 last night and returned to smash our car window at 6pm to take a radar detector.