Police called after 9-year-old goes berserk at school

"Police were called after a nine-year-old boy went berserk at a Palmerston North primary school leaving teachers fearing for their safety." ... and I am sure for the safety of their other charges.
"The teachers were unable to get the stick off him, they were worried about their safety and the repercussions of manhandling a student." ... and hence the safety of their careers.

This really is a sad indictment on the extent to which child 'rights' have progressed - that those charged with providing 'a safe learning environment' for them are so disempowered by the system that they are simply unable to provide this 'safe learning environment' for the offending child (do not feel they can do what is necessary to stop the behaviour), for other children in their care or for themselves ... and of course involving the police will disempower them further. What chance now for this child to acquire that mandated education in this school?
Now if such a beserk child were to injure another child while teachers watched and waited for the police, would they be culpable by ommission?

This level of immobility by caregivers (teachers), principally out of a fear of the potential consequences of their behaviour on them, is really neither safe nor acceptable practice.