Tesco is launching its first checkout-free high street store where shoppers can pick up their groceries and leave without the need for a till. It is the latest retail giant to open a store where checkouts are replaced by high-tech cameras designed to track the items shoppers place in their baskets. The firm’s high street store trial, which it has called GetGo, launches in High Holborn in London on Tuesday. Amazon launched its first Amazon Go grocery shop in the UK in February, before expanding to five more sites, while Aldi opened its own till-free shop last month. Tesco had already been testing its “frictionless” technology at a trial site within the supermarket group’s headquarters in Welwyn Garden City since 2019. The retailer said the technology had now been lifted from the trial site after a lengthy period of testing and improvements. To use the store, shoppers will need to …