A vice principal beats up a student. Students organize a protest in the cafeteria. School calls police. More students beaten up and some of them violently arrested. Some students facing felony charges.
"Let's call a LOCKDOWN to make sure the proles don't forget who is in charge around here. We'll keep them locked up like rats in a cage for a while. If they keep it up we call in SWAT for a training drill."
Lockdown procedures are appropriate in a prison, NOT SCHOOLS! Our children are free citizens.
Local CBS 4 affiliate television station broadcast this video.
The Toronto School Board has a policy of NOT telling parents about these procedures unless they have to. As a parent you would have to ask a contractor what happened, when that contractor had already been told not divulge information unless they had too.
Send your kids to school with cameras. Tell them to photograph what they do and share it with you in the evening. Do you really know what your kids do all day? Plan an individualized evacuation route for each of your children. If shit hits the fan your kids need to get out of dodge. Then they need to know how to get back home.