Three homes were then searched, uncovering more than €700,000 worth of cannabis, cocaine and crack cocaine.
More than €700,000 worth of drugs have been seized in Dublin.
Ten thousand euro worth of cannabis herb was uncovered when officers on patrol in the Rathcoole and Citywest areas stopped a vehicle in the early hours of yesterday morning.
Three homes were then searched, uncovering more than €700,000 worth of cannabis, cocaine and crack cocaine.
A man and a woman in their 20s were arrested.
The woman has since been released without charge while the man will appear before Blanchardstown District Court this morning.

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