Act leader Jamie Whyte has acknowledged he made a mistake in answering questions about incest this week.
Speaking on TV3's The Nation this morning, Dr Whyte said being drawn into the discussion was "silly''.
"I made a mistake to give an answer at all really,'' he said. "It was a mistake, it was a silly thing to do.''
Dr Whyte said as a former academic philosopher he was drawn into a philosophical discussion when he said consensual incest relationships between adults should not be illegal.
But he said as Act leader, it was not an issue he should have been drawn into.