April 30, 2015: Federal Judge Clark Waddoups files an order appointing Magistrate Judge Dustin B. Pead as Special Master to determine if the FBI tampered with a witness who was going to testify about participation in an undercover FBI operation called PATCON. In November 2015, Judge Waddoups issues an order barring participants in the Special Master’s investigation from discussing the process or the particulars of their participation.