Assistant Commissioner Mike Johnson said the latest photos were below professional standards, although they are understood to have been taken some time ago.
“New Zealand Police has high expectations for its officers and this behaviour falls well short of that standard, and is disappointing,” he said.
“The image is understood to have been taken 2 to 3 years ago, and the officer pictured has come forward to take responsibility.”
Photos of a police officer in a Mighty Mongrel Mob gang vest and hat are being spread on social media.
He said police were just made aware of the photos and were now considering their next steps.
“We will be making inquiries to understand the exact situation, and it will be considered by our Professional Conduct group, before looking at what further action may be taken,” Johnson said.
Images of the police officer in a gang vest went viral on social media in November.
The law banning the wearing of gang insignia came into force in November and carries a fine of up to $5000 or six months’ imprisonment.
Assistant Commissioner Paul Basham responded to the November photos by saying police had been made aware of the images “showing a police officer wearing a gang patch in an office”.
A policeman is seen to be wearing a gang patch in this video that was shared on social media last November.
Basham said police will be making inquiries to understand the full circumstances, before looking at what action may be taken.