A student was arrested for urinating on a police car when officers cleared out an 800-person party where bottles were being thrown in central Dunedin.
Senior Sergeant Anthony Bond, of Dunedin, said officers were called to reports of bottles being thrown at a View St party about 11pm yesterday.
When officers arrived, they discovered about 600 people inside and 200 in the street outside, Snr Sgt Bond said.
The number of people packed into the building presented a safety hazard and police took a prevention approach, turning off the stereo and clearing out the party.