Check out the Supplementary Order Paper:
http://www.legislation.govt.nz/sop/government/2011/0258/latest/whole.html#dlm3921445
New sections 4C to 4E inserted
• The following sections are inserted after section 4B:
“4C Temporary class drug notice
o “(1) The Minister may, by notice in the Gazette, specify any substance, preparation, mixture, or article as a temporary class drug.
So just by publishing in the Gazette Peter Dunne can ban whatever he likes for a year. Something suspiciously alternative about that Garlic infused lavender wine? WHAMMO! BANNED! Head of Lion-Nathan squeals that the “hemp” beer some dude in Gizzy is selling to the kids at RNV over NYE is hurting his sales? No problems, Peter Dunne can wave the ban stick for him!
No need for anything namby-pamby like evidence or anything like that. King Gerry I of CERRA now has another sovereign with him in cabinet, King Peter I of the war on drugs.