Regular officers do wear tasers, its becoming more and more common. For london, where ARVs are more often than not closer to the incident it may be less common, but in cornwall it is pretty common for a regular officer to have been taser trained.
one expert said that it was used at a handful of stations. i would assume that in dosedmonkeys experience they dont do that where in his area. the circumstances in which they are used for transport werent clear, it is possible that they are transported to aras that dont have their own lifeboat, who knows. Does it matter mate?