Shaming and defaming someone of a crime that they didn't commit, and mobbing them out of their right to defend themselves publicly (the school's policy amounts to collusion with the shamer/defamer) is most certainly illegal.
Shaming and defaming someone of a crime that they didn't commit, and mobbing them out of their right to defend themselves publicly (the school's policy amounts to collusion with the shamer/defamer) is most certainly illegal.