Two people were due to appear in court in Lower Hutt on Friday on firearms charges after the car they were in was stopped at an alcohol checkpoint.
Police say the car was stopped for a routine breath test in the suburb of Taita on Wednesday night, and officers found guns and ammunition in the vehicle.
They say the driver was arrested on a fines warrant and his passenger was detained after punching one of the arresting officers several times.
Both men were remanded and were to appear in the Lower Hutt District Court on a variety of charges relating to firearms, offensive weapons, assault and drugs.
