the thing is it's not clear they aren't breaking any laws, drone/lone looks like a controlledd substance. The
old bill can't openly say that it's fine to carry drone/lone and that if you tell them it's mephedrone it'll be ok, as "everyone" will then start openly carrying illegal stuff and telling PC D. Umbshit that it's mephedrone. Age old thing really, if you've got nothing to hide, don't go...