So far this year MidCentral Public Health Services had conducted four tobacco Controlled Purchase Operations throughout the Manawatu-Whanganui region.
Fiftytwo tobacco retailers were visited, with two Ministry of Health infringement notices issued - to Durie Hill Store this month and to BP Connect Blue Moon in Fitzherbert Avenue, Palmerston North, in February.
Mr Munro stressed the need for retailers to ask customers for identification if they looked under 25 years of age.
"Don't rely on appearance - if they look under 25, ask for ID," he said.
"Eradicating the sale of tobacco to minors is an important step towards achieving a Smoke-free Aotearoa by 2025".
Munro said a positive trend emerging was retailers choosing to go tobacco-free. To date, 10 retailers in the region had chosen to stop selling tobacco at their premises.