Even today (in my country) nonlethal weapons are taking the place of formerly lethal ones among forces specialized in dealing with unruly crowds up to riots. In fact, the only people who died lately in the hands of specials forces are outward terrorists who were guilty of assaults that had cost the lives of several people. I can't believe that people in a so-called ideal future would be less enlightened than today's people in a much less than ideal present. If you can incapacitate an assailant, why would you need to kill them? Assuming you're not a barbarian that is...