Flex Admin

MN Department of Corrections - Pennington County Field Office

Currently services Marshall and Pennington counties. Our office works with offenders in the juvenile and adult criminal justice system during Pre-Sentence and Post-Sentence activities. Our office works primarily with supervision of offenders that have been sentenced before the court and placed on probation for Misdemeanor, Gross Misdemeanor and Felony level offenses. Our office has five probation/parole agents and two clerical staff. The Thief River Falls, DOC field office is open Monday through Friday 8:00 a.m. - 4:30 p.m., excluding holidays.

Probation / Supervised Release Office

Pennington County Justice Center
141 Main Ave S
Thief River Falls, MN 56701
Phone: 218-683-8520
Fax: 218-681-0904


Supervisor 218-308-2565
Mary Gerardy 218-683-8524
Wayne Nomeland 218-683-8528
Tiffany Rivard 218-683-8525
Peggy Stark 218-683-8526
Derek Biermaier 218-683-8529
Jeremy Rychlock 218-683-8527

Jessica Aarestad 218-689-0204

Office / Clerical
Coreen Erickson 218-683-8523
Christi Halbasch 218-683-8522

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