Senior Sergeant Craig Dinnissen, of Dunedin, said the work was part of a national directive and would continue for six weeks, or until directed otherwise.
Police have this week been out in force in the city, visiting Dunedin schools and providing an armed presence near mosques after the Christchurch terror attacks last Friday.
Dunedin police were this week credited by Muslim business owner Hasan Abdel Rahman, of the Brockville pharmacy and nearby Mecca international food store, as helping calm nerves through a reassuring talk at the mosque.
Officers in the city were routinely armed as part of the national directive and this looked set to last for six weeks as well, Snr Sgt Dinnissen said.
Police have been regularly patrolling near schools and outside the Al Huda mosque, in Clyde St.
An officer also visited the An-Nur Early Childhood Education and Care Centre, in South Dunedin, where children and staff practised lockdown procedures before the centre reopens next week.
