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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The weather for the new week looks like being rather changeable, thundery at times; breezy and cool. Here's the full forecast...
Pollen counts will tend to vary in any showers, but generally will decline throughout the coming new week