Question Author
/// If I were prepared to go in close then I might have considered becoming a policeman. ///
Yes much more safer to sit at one's computer criticising those who risk their lives each and every day, so that you and I can sleep safely in our beds.
/// What if the criminal suddenly drew a knife or more serious a gun, bit late then to get your taser out of your pocket. ///
I don't think they keep them in their pockets, and more than able to get them out if confuted with a knife, might be a little more difficult if confronted with a gun, but a little quick on the draw, is much more protection than no weapon at all.
/// I don't think your scenarios prove anything. Tasers still create a, "guard and prisoner", relationship, which is not good. ///
I don't know about "guard and prisoner" or even a "relationship", but surely the whole idea is, a "capturer and potential prisoner."