Parañaque police chief Ronald Estilles, said there are an estimated 40 warehouses all over the city that should be inspected.
"These are conspicuous establishments with high fences surrounding them," he noted.
Estilles said they would coordinate with the local government, particularly the city’s Business Permit and License Office, to verify if these warehouses had been issued permits.
He added they will also summon Milagros Mayuga, the owner of a compound in Barangay Tambo, where the "shabu" warehouse is located, for investigation.
"I directed Rolando Santiago of the Drug Enforcement Unit to follow up on this so that the owner can be questioned and help shed light on others involved in the operation of the said warehouse."
Members of the Criminal Investigation and Detection Group-Region 3 (Central Luzon) swooped down on the warehouse at the Mayuga Compound located on Pilderas street last Sunday following a tip from an informant that chemicals and equipment for making shabu were about to be delivered to several Central Luzon provinces from Parañaque.
Operatives seized 100 bottles of pyridine, 96 bottles of thionyl chloride, four bottles of methanol and four bottles of chloroform buried in a three-by-three meter pit at the facility which was fronting as a prawn warehouse.
The CIDG arrested five Taiwanese nationals allegedly behind the warehouse’s operations. They were identified as Chung Hao Chai, 46; Wu Sheng Chin, 43; Wang Chih Chung, 31; Chen Yin Lu, 54 and Harry Fe, 36.
The raid was conducted on the strength of a search warrant issued by Judge Aida Estrella Macapagal of Parañaque City Regional Trial Court-Branch 195.
Estilles said that since year 2000, seven shabu laboratories have been busted in Multinational Village and one each in Sun Valley Subdivision, Merville Subdivision, Marina Subdivision and Bayview Village.