From a Foxsports.com article:
Dickey's office is overseeing USC's internal investigation. He said about 50 people have been interviewed in conjunction with the NCAA and Pac-10, with USC participating in every interview "except those few from which we were excluded."
"Our exclusion from these interviews mainly stemmed from demands from those making allegations against our student-athletes, insisting that no one from USC be present," he said.
Dickey said the university will not comment on what has been learned until the investigation is complete. However, he said he felt obligated to correct what he called inaccuracies that have appeared in media reports.
Dickey said USC has repeatedly asked to participate in the NCAA's interview of marketer Lloyd Lake, who allegedly gave Bush improper gifts while he played for the Trojans.
But Dickey said Lake and his attorneys have refused to allow USC to be present.