Gardaí from the Drogheda District Detective Unit and Drogheda Divisional Drugs Unit made the discovery the search of a house in Queensboro.
During the course of the search, Gardaí found two separate grow houses containing cannabis plants.
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A small quantity of cannabis herb was also seized along with drug paraphernalia, such as lighting and fans used in the cultivation process.
A man in his 30’s was arrested at the scene and is currently held at Drogheda Garda Station.
Investigations are ongoing.