"MLB filed a lawsuit in March against Biogenesis of America, Bosch and others, complaining they interfered with the contracts between MLB and the union. The suit was unusual and may never reach trial, but it did give MLB the ability to file civil subpoenas...
"It's like traditional law enforcement methods," Tygart said. "Even without the powers of law enforcement -- wiretaps, search warrants -- you can still have success in obtaining these documents.""