The call sounded like an advertisement for a credit card security plan. Someone in London had purchased a piece of Americana, a toy tractor from Ohio, with the credit card number of an Old Colony Road resident. Capital One credit card company called Wakefield police to report a case of identity theft. The criminal’s tool was the Internet, a growing challenge for law enforcement all over the world. Wakefield Police Department handled roughly 50 cybercrime cases last year, but Det. Sgt. Gerald Curran believes that many more cases go unreported…