Police have issued 50 infringement notices for riding dangerously on a vehicle following a tangi in Porirua last month.
Kapiti-Mana area prevention manager Inspector Nick Thom said the large funeral procession on 11 October caused significant disruption to traffic with a number of vehicles driven in a dangerous manner.
Two people were arrested and police impounded four vehicles at the time of the event.
Police are continuing to make enquiries into other possible offending and would not rule out further enforcement action.
Thom said a second, unrelated tangi is expected to take place in Porirua on Wednesday.
"Police respect the mourners' wish to grieve and will be monitoring the event to ensure public safety.
"Enforcement action will be considered if required, however police urge those involved to be considerate of other road users and adhere to alert level restrictions."