Three men and one woman were arrested and charged for their suspected involvement in the large-scale manufacture and supply of methamphetamine in southwest and western Sydney.
The investigation began after a dual national with links to organized crime arrived at Sydney Airport, leading to the arrest of the suspects.
Multiple suspects face charges including manufacturing methamphetamine and trafficking in drugs.
The agencies involved are determined to combat organized crime and prevent drugs from reaching the streets. The accused will appear in court today.