Apparently the use of tasers have gone to Supreme Court: "The bottom line, in any event, was that the officers had won. They have nonetheless appealed to the Supreme Court, in an effort to clear their names and preserve the freewheeling use of “a useful pain technique.”
Their employer, the City of Seattle, seems to think they have gone rogue. In a separate Supreme Court filing, Seattle disavowed what it called the officers’ “ ‘sky is falling’ interpretation” of the Ninth Circuit’s decision, which said only, as the city put it, that “three applications of a Taser in drive-stun mode in less than a minute on a pregnant woman who does not pose a safety threat” may give rise to a lawsuit for a jury to sort out
So the use of tasers as such is in the system awaiting a decision, but how can you make sure that the police do not abuse the use of them?