Boston has a cunning plan
As Balderick says. Story here. The plan is that police will go in groups to houses where they think juveniles might have guns, and seek parents' permission for a consent search. If they do find a gun, they'll seize but not bring charges. If drugs are found, they may or may not file charges. It's based on a St. Louis program where 98% of people consented to the search.
May as well get rid of the 4th Amendment, too, I suppose. Of course my juveniles own guns. Legally. It does strike me as strange -- or maybe this is the way Boston really is -- that a parent whose juvenile owns an illegal gun or drugs has to call in police to take them away.
UPDATE: Yeah, I know consent searches are outside the 4th. I'm referring more to its spirit -- don't search without a good reason, and esp. don't search residences without a very good one.