NZ First leader Winston Peters has been interviewed by detectives investigating allegations Brendan Horan took money from his late mother's bank account.
It came as Tauranga police confirmed they had stepped up their inquiry into Horan.
Police began assessing the claims after the case was referred to them by the
Serious Fraud Office in January. "This assessment is complete and has now moved to an investigation phase being led by Tauranga Criminal Investigation Branch," a spokeswoman said.
Peters refused to discuss his police interview, saying he didn't want to "waste his time" on Horan.
Horan, who was on holiday in the Gold Coast, said he did not know where the investigation was at. "It just goes on and on and on," he said. "I've been asking the police to hurry up. It's vexatious. I want to know why they're wasting time."
