TVOne’s consistently top rating show Coastwatch returns for its seventh series. Screening on TVOne at 7.30pm on Tuesdays.   Following Fishery Officers from The Ministry for Primary Industries, NZ Airforce and Navy personnel, and the Maritime Police, we get up close and personal to find out what’s involved in patrolling and enforcing the law that protects our coastlines, water-ways and billion dollar Kai-moana industries.  We also follow the men and women volunteering for Northland Regions Coastguard, and the Northland Electricity Rescue Helicopter.  Tasked with responding to mayday calls, medical emergencies, on-water breakdowns and accidents, they keep our waterways, and those on them, safe.  The Maritime Police, along with the Police National Dive Squad, are also on high alert for any maritime emergencies.