SAINSBURY’S shoppers say they feel like “hostages”;; after being forced to scan their receipts before leaving the store.

Barriers at self-checkouts in a handful of the supermarkets will not open unless you show proof you paid for your groceries.

Barriers at Sainsbury’s self-checkouts will not open unless you scan a receipt

The measures were brought in at the 153-year-old grocery giant following security concerns.

But the rules, which Sainsbury’s said are “not new”;;, left some loyal shoppers vowing never to return.

One fumed on twitter: “Essentially they are holding [people] hostage against their will.”;;

Another erupted: “I’ve been loyal to Sainsbury’s for 30 years. Now it stops. How dare you insult me, by scanning receipts to leave.”;;

Others complained they never request a receipt when prompted.

While another claimed even discount stores don’t have such barriers.

One of the stores at the centre of the storm was a Sainsbury’s superstore in Redhill, Surrey.

A Sainsbury’s spokesperson said: “This is not a new security measure and features in a small number of our stores at the self-service checkout areas.”;;

Similar measures are seen at Primark, Ikea and Costco, the bulk buy store.

The Sun tried out the system at Primark, but warned shoppers of the receipt risk .

It was recently revealed self-checkouts are proven to leave you more likely to accidentally steal .