"Information from the external world is being transferred to the appropriate parts of Mr. Sharon's brain, " said Martin Monti, a professor from the Departments of Psychology and Neurosurgery at the University of California Los Angeles.

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The subsequent report, "Outsiders and Insiders", concluded that the senior civil service "should take appropriate measures to reduce its reliance on external recruitment, not least because outside appointees do not appear to perform better than career civil servants - despite being paid more".

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The guidance recommends dealing with issues in school where appropriate, for example removing graffiti, but in other cases external agencies, like the police, may be informed.

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