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Tesco trials giant trolley scales in Gateshead

Trolleys are weighed before checkout to identify any items customers might have missed or scanned twice.

Now in the Gateshead Trinity Square Extra store, shoppers can push their trolley on to the scales and if the weight matches the items they've scanned they pay as normal. "You've left your handbag in the trolley, you've got to take your child out of the seat, you might be queueing behind someone who has been stopped and you can't get through so the trial needs to focus on minimising friction points in the customer experience." In August upmarket north of England supermarket chain Booths got rid of self-scan altogether, while Asda and Morrisons said they would put more staff back on manned tills.

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