Half of UK teenagers have witnessed or been victims of violence, study reveals

UK's largest survey on knife crime, bullying and gang rivalry has uncovered shocking and unacceptable' levels of violence

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Half of all teenagers witnessed or were victims of violence in England and Wales last year, according to a landmark report by government advisers into what drives knife crime, bullying and gang rivalries.

The largest-ever survey in the UK of youngsters about the problem found shocking and unacceptable" levels of youth violence, with 358,000 teenagers physically injured during the last 12 months.