Teachers at a Birmingham school have voted to refuse to teach a pupil who was allowed to return to class after an incident involving a knife.
The decision to exclude him was overturned by the governors.
It comes as campaigners call for a knife amnesty following the deaths of two teenagers who were stabbed in the city in the past seven days.
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The shoes date back to 1690 and are thought to be worth hundreds of pounds.
Detectives are appealing for witnesses after the assault was reported earlier this month.
A candle-lit vigil was cut short after a man started shouting.