I suspect he means an Armed Response Unit ! Remember the end of Monty Python and the Holy Grail ? The police arrived and grabbed the k-nighits swords off them shouting "You're nicked! That's an offensive weapon, that is!" It is illegal to wander about with a blade, even if it is one of Duncan the Swordsmith's exquisite works! And claiming that you're a celtic shaman cuts no ice with the polis. If you must, then don't let anyone else see you, as you'll just cause fear and alarm. Might I also suggest a change of venue? Dun Ringill by Kilmarie is much more suited to eldritch rites,being a couple of thousand years more ancient and is just across the road from the swordsmith's house...
I prefer to do all my all-night sacred vigils in ancient ruined duns
outwith midgie season, as the little buggers play havoc with my ability to commune with the Great Spirit.