All employees have certain rights and entitlements after an incident of assault or abuse.
Your school should have policies and procedures in place to support staff in their management of situations that might involve violence, threatening behaviour or abuse.
Recognising what triggers aggressive and violent behaviour is a necessary part of your skills as an education professional.
Teachers and lecturers have no formal right to refuse to teach a disruptive pupil or student.
The use of reasonable force should always be a last resort for teachers and support staff but schools should offer clear, precise advice and guidance to their staff on their restraint policy so that there can be no confusion. Your school should have a policy on the use of force.