"We will be communicating with our staff this should not be happening in future.
"There were lessons here for their staff on the appropriate way to conduct these operations in future. And I will be ensuring those conversations will be had."
Wakelin said such operations, however, are an important part of police prevention and enforcement activities on New Zealand's roads.
"On this occasion, police were looking for motorists who run red lights or who were driving whilst using their mobile phones. Both of these offences are causes of death and serious injury on our roads," he said.
Wakelin said the purpose of the operation was to remind road users that using a mobile phone while driving, which included when stopped at traffic lights, was both illegal and dangerous.
"The use of a plainclothes officer to watch for these offences is a standard operating tactic to prevent death and serious injuries on our roads.
"Of which, there have been 20 deaths on our roads in Counties Manukau in 2022 to date.
"People who take the risk to run a red light are putting not only themselves but the lives of innocent members of our community at risk."
Wakelin said running red lights was a risk "not worth taking".