Pro Active Traffic Stop Leads to Drug Trafficking Charges
Long Plain First Nation
On November 22, 2025, just after midnight Manitoba First Nations Police Service (MFNPS) officers were on pro active patrol in Long Plain First Nation. Police conducted a traffic stop after a vehicle was observed traveling at a high rate of speed.
During the traffic stop a female was identified as having a warrant for her arrest. While effecting the arrest on the female, open liquor was observed in the vehicle. All occupants were placed under arrest for unlawful transportation of liquor. As police removed the occupants from the vehicle the driver was noted to be impaired by drug.
A search of the vehicle and people in custody led to the location and seizure of suspected cocaine, Canadian Currency, drug trafficking paraphernalia and illegal cigarettes.
Cori Mauthe, 51, of Glenboro, was held in custody for court and has been charged with:
- Possession of a Controlled Substance for the Purpose of Trafficking (Cocaine)
- Possession of Property Obtained by Crime Under $5000
Mallory McKinney, 37, of Swan Lake First Nation, was held in custody for court. She had an outstanding warrant for her arrest and has also been charged with:
- Possession of a Controlled Substance (Cocaine)
Matthew McKinney, 39, of Swan Lake First Nation, was released from custody on an Undertaking for a future court date. He has been charged with:
- Operation while Impaired (Drug)
- Possession of a Controlled Substance (Cocaine)
- Possess fewer than 25 units of unmarked tobacco ($2542 fine)
2 additional occupants of the vehicle were released without charge.
