The ACT Party says it will put 17 year olds back into the adult justice system if it's part of a government after the election.
The law and order policy would reverse a change the National Party made in 2016, raising the youth justice age to 18.
ACT supported that at the time but party leader David Seymour now says it was a mistake and it's done nothing to reduce youth offending rates.
Mr Seymour's office declined an interview with Morning Report.
Meanwhile a justice advocacy group says policies like this are the reason it's kicking off a new campaign today calling on politicans to quit the talk about being 'tough on crime' this election.
People against Prisons Aotearoa spokesperson Emmy Rākete spoke to Ingrid Hipkiss.