A man from Marsascala was charged with trafficking and possession of cannabis resin.
Martin Cachia, 54, also pleaded not guilty of failing to declare €21,000 in cash to the Comptroller of Customs while he was leaving Malta on his boat on Friday.
Mr Cachia, who was arrested on his boat, also pleaded not guilty to being in possession of a gun.
He was remanded in preventive custody.
Police Inspectors Malcolm Bondin, Jonathan Ferris and Pierre Grech prosecuted.