The Police Minister will likely front up to parliament Wednesday afternoon to correct statements he made about training new police officers.

Mark Mitchell told the House that the Government would take three years to deliver 500 new frontline officers, but the government's coalition agreement with New Zealand First says the parties will deliver on that commitment within the first two years.

The Prime Minister says Mitchell misspoke and the coalition is committed to a two-year plan.

Deputy political editor Craig McCulloch spoke to Charlotte Cook.