Kelvin Davis is hitting out at calls for an inquiry into Corrections' treatment of inmates

It comes after last month's Waikeria prison riot - and a judge's ruling that staff were behaving in an inhuman and degrading way at Auckland Region Women's Prison.

Both the Maori Party and National are advocating for a closer look - with National's corrections spokesperson Simeon Brown also questioning whether Kelvin Davis is across his portfolios.

But when that was put to Corrections Minster Davis - he bit back hard... saying who cares what Simeon Brown thinks.