Tesco sorry for shoplifting accusation

Tesco has apologised to a shopper, who was taken aside in his local branch of the supermarket and accused of trying to steal a trolley full of groceries. Chris McGarry was with his mother Margaret in Bedlington, Northumberland, when he says he was humiliated by the actions of staff.

So what happened, and what can you do if you are falsely accused like this?
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