AFacebook post has gone viral, after a man, Paul Jarvis, saw a thief scamming people out of their money in a tech-savvy manner.

He was putting through payments of less than £30 in a wireless card reader and touching it on wallets of unsuspecting people.

Mr. Jarvis took a picture and posted it on Facebook, writing: "So this guy was spotted wandering round with a Point of Sale (POS) device. All he has to do is key in a price less than £30 and then touch the device on the pocket that contains your wallet.