No. They take cover, keep the criminal in sight and then call the armed unit to deal with him. It happened to me at a military show in the 90s in the UK. A couple of young tourists thought it would be fun to aim pen lasers from a hotel window at a couple of my men on guard duty at the gate. Not a very smart move as we were expecting trouble from the IRA. The soldiers took cover, we asked for an armed response team from London's Metropolitan Police which duly stormed the room and arrested the pranksters. No one was hurt and the idiots were deported the next day.Here's a list of police officers killed on duty in the UK since 1900:http://www.policerollofhonour.org.uk/roll_of_honour/homicides/homicide_list_1900.htmWhat is instructive about it is how few are killed by criminals. Care to compare this with US figures? Anyone?