Can defrosted raw meat be frozen again once cooked?

Answer 1

Yes. But keep in mind that if it sat for any period after being cooked and prior to being frozen, it's crawling with bacteria (with safe food handling, most of this bacteria is harmless, but should the preparer not wash his hands after touching something it could have been inoculated with a hazardous bacteria).

So the frozen "cooked" meat will have to be recooked once it thaws anyway, and most likely feel like you're eating an old shoe since most of the moisture was removed TWICE.