内容摘要：That is a policy area controlled by Westminster rather than Holyrood but that does not prevent discussion.

That is a policy area controlled by Westminster rather than Holyrood but that does not prevent discussion.

John says that everyone needs groceries so the number of people whose shopping can be tracked is huge."Are there even any rules informing customers before they enter? How on earth can the average person understand the extent of the tracking?

"Are children even kept out of the dataset? Who can access this data? Is it shared with police? Is my data being sold? We need answers to these questions!"Heather, 30, from Nottingham says the tech makes her feel uncomfortable and punishes shoppers who are honest and use the self-scan as intended."Yes, you have cameras following you everywhere in the store, but this is simply too invasive," she told the BBC.

"If stores are so paranoid about shoppers stealing goods, then they should go back to staffed tills instead of wasting money on this invasive technology."The move marks the latest attempt by retailers to try to stem the rise in shoplifting.

at its Gateshead store, which prompted a similarly mixed response from shoppers earlier this year.

"Am I at border control or Tesco?" asked one Reddit user.It revealed that 2.7 million vapes had been littered on Scotland's streets in a single year - about 10%t of the total consumed.

The report also found that 22% of all under-18s - about 78,000 people - were using vapes.But it was the environmental impact which concerned Laura the most.

She said: "They begin to fall apart. They get broken, they get damaged and the metal can pop tyres so it's a really big problem."In the same year that Laura first launched her campaign, it emerged that a fire which destroyed a recycling facility in Aberdeen had "most likely" been caused by a discarded vape.