Dude thats awesome tell him not to say a word, no busted labs are nothing. Without a search warrant he's pretty much safe cuz they can't use that in a court of law. If they were smart they would've found it and then got a search warrant and came back, thats the only way. They can't bring his stuff in as evidence thats why they are calling him and trying to get him to incriminate himself. HE SHOULD SAY NOTHING AT ALL, again unless a lawyer is present. Legally they can't use the shit that they found, it was an illegal search and seizure.