National MP Mark Mitchell has accused Justice Minister Andrew Little of "trivialising" an indecent assault in which a prisoner grabbed the bottom of a female prison officer.
The case was raised by Little in Parliament on Thursday when Mitchell, National's justice spokesman, was questioning him about the numbers in prison who were "low-level criminals."
Mitchell had asked for an example of a "non-violent" assault after Little said more than 50 per cent of those who entered the prison system each year were convicted of crimes that did not involve violence.
Little referred to the conviction of the first "three-strikes" offender Raven Casey Campbell for indecent assault in 2016 for "pinching the bottom of a prison officer".
He said that left Campbell facing the maximum seven-year prison sentence without parole because it was the Campbell's third conviction on a serious charge following convictions for robbery and aggravated robbery.