You won't find any evidence if they do or don't, as they would hire an investigative agency to do the leg work and approved proposed methodologies for seeking information would remain confidential. In the cases of Bonds, A-Rod, Clemens and some other frontline players, I'm fairly certain detectives were hired once the League came under fire for having looked the other way throughout the 90s, by some entity, be it a team or teams, or the League, in addition to legal authorities. And I would bet that the target's trash was searched. Yes, the Twins did get screwed, but I challenge you to demonstrate that Ervin Santana is some sort of "evil mastermind", this is also on the Twins for failing to heed the very basis and cornerstone of high-risk finance- Caveat Emptor.