Chief Superintendent Mary Doyle said: “I would ask anyone who knows where Jon is or if anyone has seen a man matching this description to contact officers on 101.”
Jon suffered memory loss in a recent car accident although this did not occur whilst on duty.
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Showers or longer spells of rain. Severe gales on Sunday with storm force winds for coasts and hills
Tyson Fury plans to give his fans a song when he's finished with world heavyweight champion Wladimir Klitschko on Saturday night.
Often very windy, especially as we head into Sunday, with rain or showers. Met Office 'Be Aware' warnings have been issued