Law firms routinely shred documents.
At home I shred every credit card app I get. Maybe they want to dig those out of the trash to see if I am colluding with the Russians.
When one is interviewed by the FBI, there are 2 agents in the room, maybe 3.
1 or 2 agents do all the talking.
The other is, the note taker. The FBI, unlike pretty much every other law enforcement entity in the country(at least on the Non-Federal side) does not video, or record in any way, interviews with victims, witnesses, or suspects. They don’t want you to see those interviews, because you may learn that what the person said may not be what is in the report. Hmmmmmm.....interesting way to do business when the rest of the law enforcement world used recordings to show that every thing was done on the up and up. Just watch, The First 48.
So, when the interview is over and the report is written, the “NOTES” are DESTROYED as a matter of practice. So, no matter what the person being interviewed said, may have said or didn’t say, all of which may be in the notes, it is what is in the final report that matters. As that is the only thing left of the interview. Why do they do this? Obvious, they can basically write whatever they want. Look at Flynn. Strzok said he didn’t lie. But, somehow the final report said he did and that is what they used to go after him.
They are a shady bunch that has been able to get Congress to carve special rules, practices and procedures that would be laughed out of a local Superior Court. But, then again, I challenge anyone to find a local Superior Ct that would imprison anyone, solely on, Lying to a Cop/Detective, in the same way the Feds use 18USC1001.