Amazingly, the FBI didn’t record or video the interviews, that came out.
With no grand jury, it then follows that there were no search warrants, no subpoenas, no covert recording. The first investigation was designed for the outset to be a cover up.
If they were videos or recorded after immunity was offered we don’t know. I would tend to think all the parties involved know he won’t live to testify in court or before congress -it would make sense to record it.
Presumably, he was offered immunity, because he was taking the 5th.
“The first investigation was designed for the outset to be a cover up.”