The dangerous combination of a weekend of drinking and a sleeping pill resulted in Jarrad Hoeata going on a reckless drive that ended when motorists blocked him off the road.

Fonterra says it won't hesitate to take action, "including refusal to collect milk" if deliberate animal mistreatment is proven.

New Zealand's biggest privately held dairying operation allowed dozens of calves to slowly dehydrate to death.

A major police raid in the Waikato discovered large amounts of guns and drugs, as an eight-month operation came to a climax.