00:00Now as the number of shoplifting cases continues to rise, some retailers are
00:05turning to artificial intelligence to try and reduce the number of thefts. Some
00:10civil liberty campaigners have warned against it, but businesses say it's a
00:14useful tool. Our correspondent Jim Connolly has more. For years shops have
00:19been telling us how fed up they are about this type of crime. Vince, the
00:25owner of this place in Tenby, is worried shoplifting is costing his family
00:29business so much it could close the store. A familiar story up and down the
00:34country. So shops like this one are spending thousands of pounds a year on
00:38AI technology to try and track down thieves who are stealing. So let's put it to the
00:43test. So I'm going to grab this bar of chocolate here, I'll put it into my
00:46pocket and see if the cameras and the technology pick it up and I'm going to go
00:50and chat to Vince to see if that's happened. Yeah, there's you. Wow. You stole the
00:54chocolate bar. I mean that's literally about a minute after I did it. Yeah, we're
00:59normally drop onto our phones within about 30 seconds. It pings in our ears
01:02within about five seconds. Really? It allows us then to be proactive in our
01:07approach. If this had been a real life scenario I'd have gone and introduced
01:11myself to you. It's given us control back and it allows us to get on the front
01:17foot really. And how much is it costing you? It's costing us you know in excess of
01:21five thousand pounds a year. But it's about us making a stand and saying you
01:27know what enough is enough and yeah this has got to stop. Some people would be
01:31uncomfortable with the idea of AI and CCTV kind of prying on people in this way.
01:36What would you say to those people? We've got it in as much for people's
01:41safety as well. It's not about this big brother. It's about actually us saying as
01:45a community we want to be safe and it's about us being proud of where we live.
01:49Shops are using all sorts of high-tech solutions. For example some scan faces
01:54against databases of suspected criminals and others track car number plates.
01:58The businesses using the technology say it's really helping them crack down on
02:02shop theft but there are concerns too. We're heading now to meet someone who had
02:06an issue with facial recognition at this shop right here. It's like we've made
02:11retail managers and technology companies judge, jury and executioner with no
02:17legal due process. Jenny was added to a database of suspected shoplifters after
02:22her image was wrongly linked to a theft carried out by someone else. As I turned
02:26around the security guard is standing right over me which I felt that was really
02:34intimidating. So I asked him if he's following me and he said to me yes you're
02:41on face watch. You've obviously stolen something because you've come up on my phone and I turned
02:47around and I said I've never stolen anything in my life. I don't know what you're talking about.
02:52He said I don't care you're on this database. That must have been awful to be accused of
02:56doing something that you hadn't done. I was humiliated, really humiliated.
03:02B&M says the mistake was down to human error and apologised for the incident. Face watch told us it
03:08fully appreciates how distressing it can be to be challenged in a shop but says it wasn't a failure
03:13of its technology adding they immediately suspended the record of Jenny and removed it the following
03:18day. It says its technology helps prevent crime and protect shop workers and customers.
03:24The civil liberty group Big Brother Watch says Jenny's experience is exactly what they're worried about.
03:29It claims members of the public have been put on secret watch lists and then electronically
03:33blacklisted from their high streets. The government told us while commercial facial recognition
03:38is legal its use must comply with strict data protection laws and be used transparently.
03:44Critics want a ban on what they call the general surveillance of the public but many shops tell us
03:49it's use it or go out of business. Jim Connolly, BBC News, Cardiff.