A 26-year-old woman appeared in the Whangārei District Court on Friday alongside three Black Power gang members netted in a police operation.
The covert search warrants executed by the armed offenders squad on Thursday resulted in the seizure of two high powered firearms.
Te Arani Helen Walters, of Whananaki, was jointly charged with 31-year-old Black Power member Tawhia Hughes, of Kensington, on two firearm offences that included unlawful possession of a .22 rifle.
Two other Black Power members Hiko Komene, 24, of Whangārei, and 32-year-old Israel Orani faced joint firearm charges related to a cut down .22 calibre rifle and a waist bag containing 47 rounds of ammunition.