It is alleged Pc Alex MacFarlane said: "The problem with you is you will always be a ++++++. Pc MacFarlane does not deny the words but says he was trying to calm the arrested man down and not racially abusing him.
Pc MacFarlane told police investigating the complaint that he was explaining that Mauro Demetrio should be proud of who is and "not try to hide behind your black skin." The trial is continuing.
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Union officials are expected to meet next week to plan further stoppages if talks fail to resolve the dispute.
Natalie Sharp and Christine Bicknell appeared in court over an alleged incident at a Lidl superstore in Wallington, south London.
Dry with clear spells periods across the south tonight, further north, cloudier conditions bring the chance chance of light showers.