[supercat]

(ANYONE suspected of owning firearms)?

Anyone suspected of owning firearms, for whom there would be some other basis for search.

If you suspect someone might be growing pot, and the person's armed, do you knock and announce or smash your way in? The person might in fact be entirely innocent of the drug allegations, but you can't know that until you're actually in their dwelling.

[A CA Guy]

It may be assumed IMO that any person associated with drugs or other crimes could be carrying a lethal weapon in the house and if law enforcement wished no-knock entry, I can understand it.

I find that far different that a regular gun owner who is usually a law abiding citizen.