What is taser an acronym for?

Question

And how does it work?

Answer 1

Thomas A Swifts Electric Rifle
and here's all you need to know,
http://en.wikipedia.org/wiki/Taser

Answer 2

I don't know but it has to mean something about an excuse to abuse power because it is often not lethal. Two wired darts make contact with the target and an electric pulse is sent through the darts. This pulse can be repeated like the Spokane, WA police did to torture and kill a calf that was taking up too much of their time.