Ceri Jones is a freelance practice teacher in social work and has worked with people who self-harm.

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The study, published in the autumn, found many teachers did not know what to say to young people who self-harm.

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About 1, 500 people are deemed to be of particular risk of self harm each month, says the Prison Service.

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People deemed "likely to engage in conduct that would result in serious harm to self or others" by mental-health professionals would be added to a state database for checks.

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It worries me because I don't want him to do anything to hurt himself, and it worries me because encouraging self-harm is one of the most common things that genuine psychotic "voices" tell people.

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