Stratford News Back to normal at Mitchell District High School after hold and secure event SHARE ON: Casey Kenny, staff Thursday, Feb. 21st, 2019 Hold and secure lifted at Mitchell District High School. Photo supplied. It’s back to normal at a Mitchell high school after it was earlier put in a hold and secure mode. Police say they were called to Mitchell District High School around 10 a.m. Thursday after school officials say they put the building into a hold and secure as a student was having a mental health episode. The school board says the hold and secure was put in place so that students wouldn’t be changing classes while police were with the student. Perth County OPP Sergeant Barry Cookson says no threats were made and no one was injured during the incident. “We respond and determine what the situation is and see what resources are required to bring the incident to a safe conclusion after that.” Cookson adds that the incident only lasted around 20 minutes and that the hold and secure was put in place by the school board and not the police.