Labour leader Phil Goff is standing by his handling of the circumstances leading up to the resignation of former chief whip Darren Hughes, saying he can sleep at night confident he made the right decisions.
Mr Goff was overseas when police decided last week not to lay charges against the former Labour MP, but he returned to the country late on Tuesday.
Mr Goff was under pressure over his decision to keep the sexual assault complaint against Mr Hughes secret until it was revealed in the media.
Mr Goff initially put Mr Hughes on leave, then stood him down from his portfolios before finally accepting his resignation.
But Mr Goff says he has no regrets and believes he put justice above politics.