23-year-old Tori Lynn Peterson plead guilty in provincial court on Tuesday to sexually assaulting a 15-year-old boy.  

The former Grenfell teacher has been sentenced to 18 months at the Pine Grove Correctional Centre in Prince Albert. She was also ordered to provide a DNA sample, and to not own or use any guns for 10 years. 

Regina police first received a report of a sexual relationship between Peterson and the boy in January.  He was not her student at the time of the assault.