Russo failed the first two questions and the polygraph operator, Roy Jacob, thought he was a psychopath. Jacob knew he had to tell somebody that things were amiss but he also knew his job at the Jefferson Parish sheriff's office would be at risk.

Here is the internal report of the test sent to Jim Garrison (note that many documents use Jacobs, but his name was Jacob):

The polygraph test was administered on March 8, 1967, well before the preliminary hearing on March 14, 1967. The memo was typed up two months later. Garrison put Russo on the stand despite the report from Roy Jacob.

Here is a report written by Aaron Kohn, head of the Metropolitan Crime Commission. There's a lot of material in this report, and rather than show the excerpts relating to Jacob, I decided to post the entire memo.

Jacob's conscience was bothering him, and he knew he had to do something, and Clay Shaw's lawyers were contacted.

NBC reporter Walter Sheridan was in New Orleans taping witnesses for an upcoming special on Garrison. Fred Freed, am Executive Producer at NBC, phoned Aaron Kohn, head of the Metropolitan Crime Commission.

On June 19, 1967, NBC-TV aired "The JFK Conspiracy: The Case Of Jim Garrison", a one-hour special documentary that took a very critical look at his investigation. Roy Jacob was interviewed by NBC but he did not appear in their special - it was left to narrator Frank McGee to tell the audience about the results of the polygraph test. Here is Jacob's uncut interview - I've enclosed the entire interview which has some repeats.

It appears that the DA's office stopped the polygraph when they realized it was going so horribly wrong. Russo was lying about Shaw and Oswald, and the session was stopped.

The memo that Andrew Sciambra submitted to Garrison did not contain the entire story as to what happened (and it was typed up months later).

Roy Jacob was interviewed by NBC but he did not appear in their special - narrator Frank McGee told the audience about the results of the polygraph test:

Here is what Jim Garrison told Playboy Magazine in the October 1967 issue:

Garrison did not resign!

How is all this treated in the conspiracy books? James DiEugenio just has a few lines (page 230):

Joan Mellen says very little about what really happened (page 147) :

And, then Mellen has this to say about the NBC special (page 198):

Jim Garrison based his case against Clay Shaw on a witness who was injected with sodium pentothal and then hypnotized three times to invent a memory, and then who couldn't pass a lie detector test.