Comment: In every group of people (police included) there are those who are intelligent and those who are stupid. The odds seem almost impossible, but it seems that the poor guy somehow managed to get stopped by the 4 least intelligent police officers in Montreal.
As to why there were four of them -  Possibly, only one could drive, one could read and write, one knew how to use the radio and the other one could find his way back to the station at the end of their shift? Any other ideas?