Cannabis cultivation skills which could bring brothers Tim and Dave A'Court jail terms in Whangarei where they lived as teenagers, have made them successful businessmen in Amsterdam.

The Kiwiseeds company they set up in the liberal Dutch city five years ago has since won three Cannabis Cups awarded by High Times, a New York-based magazine with an international circulation advocating the drug's legalisation.

Tim, 40, and Dave 37, were born in Britain and moved to New Zealand with their mother when they were infants, living first at Ruawai, then Dargaville and settling in Whangarei after a brief stint in Tauranga.

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