Police have today also released details of the boundaries to be enforced, and where road checkpoints will be located.
"Like many other government agencies, Police have been planning for this eventuality so we have been able to reasonably quickly mobilise staff to key areas to provide assurance, and to operate our checkpoints around the region's Super City boundaries," Coster said this morning.
"Police will have a visibly higher presence across the region, with all three Tāmaki Makaurau Police District Commanders working together to respond the regional alert level 3.
"We will be visible around supermarkets and places where communities need the assurance of police presence."
Coster urged the wider Auckland community to "play their part".
"And we are relying on people to heed the message to go home and stay home," he said.
From midday, police will also be operating nine checkpoints at exit points just inside the regional boundaries, largely based on the Auckland Super City boundaries.
"The checkpoints will be similar to the operations conducted ahead of the long weekends during the national alert level 3," Coster said.
"We will be stopping vehicles and questioning drivers, but as has been our approach through the Covid response, our first focus will be on educating people and ensuring they are aware of the new restrictions.
"We have issued a reminder to our staff that they need to be exercising good hygiene and social distancing practises, and we have issued a directive to our Auckland staff that they must wear masks when dealing with the public, and other PPE gear as necessary.
"For the rest of the country, this is not new territory for people and hopefully there is a strong community willingness to abide by the restrictions of alert level 2."
All front counters at police stations in the wider Auckland area - Tāmaki Makaurau - will be closed to the public with the exception of Henderson (Waitematā), College Hill (Auckland City) and the Counties Manukau Hub - which are all open 24/7 but with restricted access.
"Throughout the rest of the country, most front counters are open, but with restrictions to protect our staff and those coming into the building," Coster explained.
"Our level 2 safety measures focus on physical distancing, hygiene standards and contact registers.
"Where possible, please visit us online."
You can report non-emergency situations online HERE or call 111 if it's an emergency.
• For the latest information and updates on the alert level restrictions, visit https://covid19.govt.nz/