Jimmy Stringer, 23, was one of four people who smashed their way into Michael Jones Jewellers in Banbury, armed with sledgehammers.
He was jailed today for five years and three months for his part in the robbery. Passers by helped bring him to justice, holding him down until police arrived.
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Dorset Police is warning of the dangers of drink or drug driving as the annual summer campaign begins.
Friday afternoon's forecast for the west of the region
Friday afternoon's forecast for the east of the region