"Gang patches heighten the tensions between the two gangs [Mongrel Mob and Tribesmen]. If we have that in our school, that encourages bullying between the children. It encourages a passive type of recruitment in our schools."
The Murupara community took a stand against these groups after two gang-related killings of teenagers in 2009.
It has placed a rahui, or ban, on gang patches, bandannas and colours on marae, and also inside some public places such as shops.
Mr Te Kurapa said these community-led changes had been successful in lessening the influence of gangs, but law changes were needed.
While the school urged MPs to push the bill through, a lawyer for gang members said the legislation was misguided and could accidentally capture members of the public who were innocently wearing gang colours.