Office of the Director, Judge Advocate Division, Headquarters USMC, Winter Soldier Investigation files.
If Lewy was referencing an oral briefing, he would have indicated so as part of the citation, per standard citation procedure. I have to conclude that either the document existed and has since been misplaced/moved, or Lewy is a forger--I don't see any room for poor memory as a viable explanation here. And I don't see any reason to suspect Lewy is a forger, so I am inclined to seek an explanation elsewhere.
Lewy may have been briefed by someone who told him of the NCIS report residing in “Office of the Director, Judge Advocate Division, Headquarters USMC, Winter Soldier Investigation files”.
Lewy could have taken notes as to what to expect when he read the actual report himself, and then forgot that that he didn’t read it himself. As he says now, he can’t recall.
No dishonesty if it happened that way, just a mistake.
Lewy’s account of the NCIS report has the feel of a brief summary: e.g., no names of individual WSI witnesses.