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An Asian cashier with a photographic memory was arrested for memorizing 1,300 credit cards and going on a shopping spree in Tokyo, Japan.

Yusuke Taniguchi, a 34-year-old, at the time he was caught, committed the crime while working at a mall in koto city of Tokyo. According to police, Taniguchi worked the register part-time at a mall in Koto City. Whenever a customer would pay by credit card, the suspect allegedly memorized their 16-digit-number, name, expiry date, and security code, all in the time it took to process their purchase.
Using an apparent photographic memory, he could retain all of the information until after the transaction when he could jot it down. Following Taniguchi’s arrest, police found a notebook containing the hundreds of names and numbers and are currently linking them to past incidents to ascertain the level of fraud he has committed with this said technique.

IF he's such a criminal genius; how did he get caught?