Police and WorkSafe are concerned for the safety of employees at a dairy in a Christchurch suburb which has had a spate of robberies.
Police said the Night 'n Day on Ferry Road in Woolston has been robbed eight times in seven months.
It was most recently targeted early last Wednesday morning.
Inspector Tony Hill said police would collaborate with WorkSafe to make sure the Night 'n Day store was safe enough for its staff to be there.
He said an increased number of officers would be in the area.