Supporting information for issues of concern can include:
Drawing the hearing body members' attention to relevant sections of the RMA, New Zealand Coastal Policy Statement, regional policy statements and plans and district plans
Identifying any relevant research and reports which support your concerns
Describing local knowledge that you have about the environment and the impacts of the proposed provisions on it
Describing practical cases or examples which illustrate your main points (such as previous zoning controls which had negative effects)
You may wish to use a lawyer to support your case and call expert witnesses relevant to your specific matters of concern (e.g. planner, ecologist, noise specialist)