The following information is from the Gallatin County Sheriff's Office:

On Friday, December 28, at approximately 1:45 p.m., Gallatin County Sheriff's deputies were called to a residence off Highway 191 near the Lava Lake trailhead. The caller reported that a person had been stabbed in the chest.

The caller advised dispatchers that the occupants of the residence had been using illegal drugs and the suspect had possibly become paranoid that the others were going to harm her. Deputies learned that the suspect had wanted to leave the residence and the other occupants stated that they could not drive due to their recent drug use. The woman’s boyfriend attempted to comfort her and when he approached her, she reportedly used a folding knife to stab him once, in the upper chest area.

The woman then fled the residence and flagged down a passing motorist. When deputies arrived, they located the woman in the motorist’s vehicle alongside the roadway. The woman had the knife with her and was taken into custody and placed in the back seat of a patrol vehicle.

One deputy stayed with the woman while others went to the residence to locate and assist the victim. At this time, the woman began to kick at the windows of the patrol vehicle. When the deputy opened the door to attempt to restrain her further, she kicked at the deputy and was able to exit the vehicle. Deputies who were attempting to assist the victim had to return to the roadway and assist in restraining the woman.

The victim was transported to Bozeman Health Deaconess Hospital for treatment of the non-life threatening injury. The suspect was arrested and charged with Felony Assault with a Weapon and misdemeanor Obstructing a Peace Officer.

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