Mandan Man Changes Plea to Guilty on Sexual Imposition Charge

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A Mandan man changed his plea to guilty for a sexual imposition charge.

Thirty-year-old Derek Wisham was charged in July with a sexual imposition and assault.

Wisham admitted to raping a woman in June and leaving bruises all over her body.

Today in court, Wisham changed his pleas to both charges to guilty.

Before Wisham can be sentenced, a pre-sentencing investigation and a risk assessment must be performed.