Mangalore: The Supreme Court has warned the  police authorities of various states that they will have to face contempt of court action in  case they fail to effectively implement the ban on tinted glasses in vehicles.

As far as Mangalore city is concerned, police have booked  4,150 cases against vehicles which have failed to adhere to the SC ruling. A fine of Rs 3,74,100  has also been collected.

According to Rule 100 (2) of the Central Motor Vehicle Rules, 1989, the windscreen and the rear windows should have a visual light transmission (VLT) of not less than 70%. For the side windows, minimum visibility should be 50%. Even cloth curtains are not allowed.