"Somebody has made a mistake somewhere, for sure.''
He said it was unlikely the shipment would ever be traced back to the original network that transported it.
"You will see during this current incident how everyone tries to distance themselves from any form of responsibility.
"At the end of the day what happens is nobody is held accountable and nobody is responsible for what is being transported.''
New Zealand Customs said yesterday there was no evidence to suggest the drugs came from New Zealand or that any illegal substances were introduced into the container before it left the country.
"Fonterra is a trusted trader and is part of Customs' Secure Export Scheme. Containers are sealed when they are packed, and the seal assures that the container has not been breached until it is loaded onto a ship,'' said New Zealand Customs spokesman Paul Campbell.
Fonterra also pointed to the export scheme, which had "strict security measures'', a spokesman said.
All the company's containers left New Zealand with security seals.