Serco and other private companies have no place running New Zealand prisons, a majority of voters believe.
A Herald-DigiPoll survey asked people their views about private companies such as Serco running prisons.
Fifty-seven per cent said running prisons should always be done by the state, against 38 per cent who said there was a place for well-run private companies operating prisons.
Five per cent did not know or refused to answer.
Private British company Serco was put in charge of Mt Eden Corrections Facility and subcontracted to run the new Wiri prison. That decision has been put under the spotlight after a string of revelations and allegations relating to Mt Eden prison, including filmed "fight clubs" between inmates and drug use.