Awwww... The police just wanna make sure you're safe and you're not with Al Quaeda.
Are there any Brittish Duckers here? Because I'm not sure how paranoid Brittain is about the whole "Al Qaeda" thing compared to America. I kinda doubt it's the common reason for abuse of power.
Anyway, this whole thing strikes me as the work of some hot-shot on the force who wants to get a name for themselves by catching a drug ring. Reading more of the article I can see that his workshop was suspicious, but some kind of evidence should be necessary for this kind of thing.