Cops are public servants. When they go into that line of work they are expected and should understand they are getting into an occupation that might involve dangerous interactions with other people. Most people who went into law enforcement in the past did it because they wanted to help make their part of the world a better place to live.
They're NOT "subject management professionals" and contrary to the State's popularly propagated myths, their on the job death and injury stats are lower than many other citizens careers. GARBAGE men have a 2X higher rate of on the job death as police...