Maina Kiai, the UN special rapporteur on the rights to freedom of peaceful assembly and of association, said he was "appalled" to hear about the blacklisting of union members in the UK construction industry.
Speaking on a trip to London, he said: "It is crucial that strong actions be taken against the making and using of such lists as a deterrence."
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Teachers at a school in Northamptonshire made a unique farewell gift for their Year 11 leavers.
The advertising watchdog has ruled the "beach body ready" campaign was not offensive or socially irresponsible.
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