Federal prosecutors allege that a law enforcement official who was investigating a fake passport scheme was subjected to an illegal background check by indicted private eye Anthony Pellicano, who was representing the subject of the probe. Prosecutors claim Pellicano had checks run on George Mueller, an investigator with the Los Angeles County district attorney's office, and five other people connected to the probe of a Frenchman named Christopher Rocancourt. Mueller said that while he was investigating Rocancourt in the mid-1990s, Rocancourt called him to boast of a "contact" with access to confidential law-enforcement information. "Knowing that a suspect in a...