Upon final reversal of a conviction of a sexual or violent offense, the sentencing court shall order the expungement of any records kept by a court, law enforcement agency, or other state or local government agency under this part.
Expungement Of Records On Reversal Of Conviction
Mont. Code Ann. § 46-23-510, under Registration of Sexual and Violent Offenders.
Mont. Code Ann. § 46-23-510