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Martyn Yates, 33, was convicted of two thefts, three robberies, and three counts of having an offensive weapon following a series of incidents which took place between November 13 - 30 last year.

His spree of robbing included leaving Sainsbury’s, on Hambleton Road, Waterlooville, with around £91 worth of goods without paying on November 13.

The defendant then stole £58.89 worth of goods from Co-op on London Road, Purbrook, at around 7.45pm five days later.

Yates threatened a security guard with a knuckle duster in ASDA on Purbrook Way, Havant, whilst stealing £689 worth of toys before stealing £2,000 worth of designer underwear from Matalan in Waterlooville, a day later while brandishing a knuckle duster.

Later that day, Yates stole £1,000 worth of toys and alcohol from Tesco in North Harbour, Portsmouth, before threatening staff members with a knuckle duster.

Knuckle duster-wielding robber who ambushed Portsmouth and Waterlooville shops locked up