radio chalker. >> radio's a funny moniker, isn't it? >> radio rental, mental.he hard boys, they're a double act. if the street marks your card, these boys give you the stripes. they've all got form-- tda, gbh, the usual. mix and match. >> okay. next, the murder weapon. um, who's dc growse? right, it says here that you're the gun expert. >> right, well, we're looking for a machine pistol, probably a heckler, possibly an uzi. ballistics can link shells to a specific weapon, so we want that stuff, like, now. >> heard that? >> okay, question, was this a gang-related execution? if so, one of two things: "a," the firearm has been returned to the gang's stockpile. it's gonna be kept in circulation. or "b," it's already been smuggled out of town, and by now it's in wherever. penzance, glasgow, uh-- >> yeah, okay, got the picture. >> growsey, case like this, you never get the weapon. >> well, we'll see about that. yeah, go on. >> okay, it's not a gangland killing. it's an ordinary decent murder. how did the killer get the gun? answer: probably he rented it like a video.

>> yeah, rice, toots, chalker-- they all claims to be friends of michael's. their prints have got a perfect right to be there. >> well, that's very boring, isn't it? well, bring him in anyway and make life hard. what about the blood? [phone ringing] >> uh, buckets of ahmed. a little bit of michael. period. >> oh, pardy, you're such a laugh. >> these are the lists, are they, rachel? >> yeah, i'm just off to copy them now, boss. 46 names. >> good, copies for everyone, please. >> okay. >> and i want those checked personally, not by phone. personally. henry, is that for me? >> michael john's just discharged himself from hospital. >> oh. has he? well, he hasn't discharged himself from me. i want him monitored around the clock, and that's your job. right, mr. growse, what about the weapon? >> regional crime squads are fully briefed. >> has the street got a cache of arms anywhere? >> mm-hmm. >> several, according to my snout. >> call him. >> i can't do that. >> ask him where they are. >> boss, can i just say something here? i don't get what we're driving at with the