Police this month are trialling baseball caps but with one clear rule - no wearing the new headgear backwards.
The trial will run in five districts, according to the police union's magazine Police News.
The caps are reportedly the brainchild of Senior Constable Mark "Chook" Taylor from Northland, who suggested the cap complement existing headgear options.
Some specialist cops including the Commercial Vehicle Safety Team already wear caps, as do police in Australia and some other Commonwealth jurisdictions.