Police are appealing to the public for help tracking down a man following a theft from an ATM in Potters Bar. Officers have released a CCTV image of a man they would like to identify to help with their enquiries after money was taken from the machine outside Tesco Express. Following the theft just after 5pm on Wednesday April 21, a police spokeswoman today said: "A man used the cash machine outside Tesco Express in Orchard Parade, Mutton Lane, Potters Bar. "When he had completed his transaction, he forgot to take his money, totalling £110 with him, leaving it in the ATM cash dispenser.