132 police died while on duty in 2016. There are 750,000 police officers in the US.
We have roughly 900,000 police officers. A total of 135 police officers were killed in duty in 2016.[0] And 14,453 injuries. We point these people towards danger daily and in a single year only 1 in every 62 of those officers will be 'injured'. I would say that's an acceptable risk for the job if the alternative is the circumvention of due process.