Some 5kg of cannabis, with an estimated street value of €100,000, was seized at an address in Lucan today.
A 50-year-old woman was arrested and detained at Lucan Garda Station, and investigations are ongoing.
The operation was part of an intelligence-led joint operation involving Revenue's Customs Service, the Garda National Drugs and Organised Crime Bureau and Ronanstown Divisional Drugs Unit.
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