UNDERGROUND SHABU LABORATORY. Under this warehouse-cum-feed mill is a shabu laboratory that PDEA National Capital Region Director Wilkins Villanueva said can produce 30 to 100 kilograms of shabu weekly. The laboratory, said to have been built four months ago, is part of a network of five facilities being operated in Luzon. The one in Las Piñas had been busted. --Tonette Orejas