"In fact, two-officer patrols could increase the potential for casualties in ambush situations" just like wearing your seatbelt is bad because you may drown if it goes into a lake. The reason cities don't have 2 officers per beat is they don't want to pay for it. Most officers think they would lose their take home cars so you rarely hear it proposed. Officers would be a lot safer though. You're reminded about how unimportant lower costs and take home cars are when you attend a funeral.