Northland police have charged a man allegedly behind Whangārei's mass gathering over the weekend - organised to express concern with "state of the nation".
Authorities said a 47-year-old man has been summoned to appear in the Whangārei District Court on October 25 in relation to the protest at Kensington Park on Saturday.
More than 1000 people took part in the peaceful demonstration led by Destiny's Man Up movement and in breach of level 3 restrictions.
It was the biggest protest in the country after Auckland where an estimated 2000 people gathered at the Domain.
Further north in Kaitaia, another NZ Freedom NZ protest saw hundreds of people gathered at Te Ahu before marching and driving up Commerce St.