Who initially came on the scene claiming to be a SEAL... and by the way, he's been promoted to Commander now... in the dental corps, or limited duty officer, or whatever the swabbies call it.
he is a maxillofacial surgeon
Ah, is he an MD, or is he a DDS? He's a freaking dentist. When he has to be honest about it, as in his peer-reviewed publications, he signs himself Gary K. Roberts, DDS, and when he doesn't he has been just as dishonest about that as he was about his SEAL shtick. Check him out; he holds a dental licence, not a medical licence. I'm not a SEAL but I don't claim to be. I'm not a dentist, either (it's a trade I respect, that requires intelligence and hard preparation). What I claim to be, I am. The dentist ought to try that sometime, but it would probably crush him.
and is also a trained forensic ballistic expert
Trained by whom? I think you will find he's an autodidact ("self-taught.").
...for NavSpecwar
To which he occasionally has been assigned (for annual training) as a dental officer, not as an operator, ever, and not as a ballistics expert, as far as I know...
and the FBI.
I can't comment on that. I have no insight to what happens in the J. Edgar Hoover building.
He is not a fraud
Then why doesn't he admit he's a dentist with a hobby of wound ballistics, and stop all the outrageous lies to promote himself? If his data are good they can stand on their own and don't need false claims to promote them. I've read some of his stuff (for example in the IWBA journal whiile Fackler was publishing it) and he is at least willing to use the scientific method, although I have doubts about some of his modeling techniques. Fackler published some of his stuff, and Fackler is picky.
and the CN18F poster needs to read more and blather less.
I've read quite enough of Roberts's stuff, him and his various flunkies. If he were to moderate his claims of who he is, down to where his legitimate achievements stand, my respect for him would grow tenfold. He could also (if belatedly) go get the honours he has falsely claimed. There was a guy in my group who resigned a commission as a medical officer to go and participate in the war (he died, but it seemed like a good idea at the time). That option was open to Roberts... he didn't take it. You can ask him why he didn't find a way to apply all this expertise. No doubt there were root canals calling him.
d.o.l.
Criminal Number 18F