There’s good reason for stores to want to use this kind of technology. An estimated 3.6 million offences of retail crime are committed every year in the UK alone, costing retailers a staggering £660 million.71 And, when you consider that in 2016 there were 91 violent deaths of shoplifting suspects at retail locations in the United States,72 there is an argument that a method of preventing persistent offenders from entering a store before a situation escalates would be good for everyone.