How traffic accidents look in China

If you bump into someone in the traffic and make even the slightest mark on the other ones car you have to stop in the middle of the road no matter where it is. Why? Because the police has to come and see the angle of the accident no matter how many other cars will have to wait because of the blocked traffic (insurance company policy here).
Today when I had dinner one of the busiest intersections had an small accident, barely visible bump in the side of the taxi. The buses could not pass it and everyone was stuck. But NO, you cannot move the car, have to wait for the police to arrive...I wonder how long it took the police to come and sort this one out. One thing is for sure, you can wish it wasn't you who will have to wait 45 minutes before being able to move.