People look on the positive side please. This is very beneficial for occupants of the cars. Seat belts are for our safety not the safety of traffic police. Everyone should make a habit of wearing seat-belts. All seat-belts should be worn including those in the rear as well.
In some places outside Pakistan, rear seat-belts are also compulsory. Not wearing rear seat belts can contribute to subjecting high crushing force to occupants of front seats even if they are wearing a seat-belt.
Some information below for further information
[h=4]1. What happens if I don’t wear a seatbelt?[/h]In a crash, a person who is not restrained by a seatbelt will continue to travel forward at the speed the vehicle was travelling until something stops them. This could be the steering wheel, dashboard or windscreen. In some crashes, the person may burst through one of the windows and be partially or fully ejected from the vehicle, exposing them to other dangers. They might hit fixed objects or be run over or crushed by their own, or another, vehicle.
[h=4]2. What happens if my rear seat passengers don’t wear a seatbelt?[/h]In a crash, an unrestrained rear-seat occupant continues to travel forward until his or her progress is impeded, usually by one of the front seats. In a severe crash, the force with which the seat is struck is usually sufficient to cause the seat mountings or seat structure to fail. The front seatbelt must then not only restrain the front-seat occupant, but also the failed seat and rear-seat occupant. Seatbelt failures have been reported under these circumstances, resulting in both front and rear occupants sustaining severe and sometimes fatal injuries. Even if the seatbelt does not fail, the front passenger is subjected to extremely high crushing forces. Front seat occupants have also been fatally injured in this way.
Source: http://roadsafety.transport.nsw.gov.au/stayingsafe/vehiclesafety/seatbeltsrestraints/