Old Slim Shady
Thanks for that; I know that it is normal practice - to say the least - for an FOI to occupy the jumpseat. It would be impossible any other way, of course.
But some-one, who sounded as if he/she knew, made an astonishing assertion that IAA F.O. Inspectors have flown as Captains on Ryanair with only a First Officer, and implied that this was while attempting to carry out an inspection, or audit.
This now needs to be denied, rather more specifically, conclusively and authoritively than you did it, if untrue. Can you do that?