Police are offering cash rewards for anyone who provides information which leads to the prosecution of those selling black-market tobacco.
Police launched the month-long campaign late last month in response to rising violent robberies targeting small businesses.
The campaign is being advertised on social media and informants are being asked to contact Crimestoppers with information about those peddling stolen goods.
The campaign, titled "There's nothing good about stolen goods", comes as Dunedin police continue to investigate the gunpoint robbery of Halfway Bush Convenience Store on May 2.
A man entered the store shortly before 11am and pointed a rifle at the shop attendant. He stole cash and tobacco before fleeing.