Those intent on disruption can be seen and heard but can't drive away business.
Protest is a well-established civil liberty in New Zealand with fairly obvious boundaries of lawful behaviour. But when it moves from land and harbours to the open ocean the law is less clear. The actions of Greenpeace, using inflatables to harass a ship that was carrying out exploratory surveys for oil and gas in the Raukumara Basin two years ago, exposed an inadequacy in the law.
The Government is proposing to plug the gap with a bill that will give the Defence Force, as well as police, the power to board protest boats outside the 12-mile limit and arrest and detain those on board. Those arrested could face charges carrying a prison term or a $50,000 fine for damaging or interfering with equipment or vessels, and a $10,000 fine for breaching a 500m safety zone around a ship.
It is unusual to give the Defence Force power to arrest civilians but they can already enforce fishing and customs laws outside the territorial limit and this extension of their powers need do no harm. They are better equipped than the police to keep protest vessels under surveillance so far off shore and to be on hand if trouble starts.
Clearly something has to be done, both for the safety of all concerned and for the national interest in attracting mineral exploration of the vast undersea continent that comprises much of our exclusive economic zone. Deep sea soundings must be difficult enough to do in southern ocean swells without deliberate disruption to consider.