Supermarkets are upping security as vegan activists put protest stickers on meat products.
The stickers have messages like, "this package contains the body of someone who did not want to die" and "dairy is scary".
Managers around the country had been warned to watch out for people trying to deface meat products with anti-meat stickers.
Pat, a butchery manager at a Foodstuffs supermarket, told Newstalk ZB it was a costly and wasteful thing to do.
He said it was affecting locally owned supermarkets, which were having their products destroyed.