"People might not know this but Cumbria has a claim to fame, and that is that the very first black policeman to go on the beat in Britain was called John Kent and he was in Carlisle in the early 19th century. He served in the Carlisle police force in the 1830's.
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It is now believed that 45-year-old Robert Cantle may have travelled in his car to the Jedburgh area on Sunday morning.
A Cumbrian man has been jailed for 15 years after a police crime unit seized its biggest ever haul of firearms.
The historic event always takes place on the last Friday in July.