I don't actually understand this story, and it is in relation to the Mangawhai wastewater scheme, but the High Court has found:
Justice Ailsa Duffy has now ruled the rates levied by the Northland Regional Council via the Kaipara District Council rate demands were invalid.
This may well have very substantial implications for the bio-security charge, and be a major piece of case law that the original poster covers in regards to the mariners questioning the legality of NRC levying this charge.
It would be really nice to see a bureaucracy get a Royal Rogering from the High Court, especially following the complete sham consultation process they carried out. How many opposing submissions did they get?