David Seymour at a hemp business in Ashburton during a regulation review last December. Photo / RNZ, Nate McKinnonDavid Seymour at a hemp business in Ashburton during a regulation review last December. Photo / RNZ, Nate McKinnon

New Zealand Hemp Industries Association chief executive Richard Barge. Photo / RNZ, Nate McKinnonNew Zealand Hemp Industries Association chief executive Richard Barge. Photo / RNZ, Nate McKinnon

A 20-hectare paddock of hemp growing in North Canterbury. Photo / RNZ, Cosmo Kentish-BarnesA 20-hectare paddock of hemp growing in North Canterbury. Photo / RNZ, Cosmo Kentish-Barnes