A view school violence is changing, with fewer mass fights, but far more frequent outbursts. 

New data shows 12,300 students were disciplined for physical assault this year – up 49% on 2019. 

Most incidents involved students attacking other students. 

Darfield High School Principal Andy England told Heather du Plessis-Allan increasing neurodiversity in classrooms is likely one factor. 

He says devices are also a problem, with social media trends often sparking more organised assaults. 

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