In December 2008, Virginia-based deputy sheriff Arthur Weston Staples III received a visit at home from police investigating claims he had traded CP images online. The former Vietnam vet, who had no previous offenses, was eventually sentenced to more than 17 years in prison after investigators found 400 to 600 illegal images, according to court documents. The 210-month sentence can be considered modest compared with the life sentences dished out in many CP convictions. But in a twist, Staples was also ordered to pay $3.68m for his possession of a single picture taken more than 10 years earlier…