See http://en.wikipedia.org/wiki/Suction_excavator After the arrests. The scoobies as usual had strewn their diving gear widely. It can handle most items. The Sea Patrol's backpack oxy-gas torches (in their personnel carrier) can break up anything big. Those rebreathers look as if that lot were up to no good. The arrested divers can hear all too well the slappings and bumps and clanks and hobnailed treadings over the suction wind noise as their gear (except weight belts) vanishes in short order up the foot-diameter suction tube and hose into the cleanup truck's mechanism. Now with IBL rendering.