Umm, maybe he just worked it out? I worked it out. There were more than enough clues, and Jolee knew better than most what the Jedi council were capable of.
The alternative is that Jolee got a vision through the force. I like the idea that the force approached a powerful force user, a companion of Revan's, to make a decision for the future of the galaxy - and in true Jolee fashion, he decided just to let events run their course.
Originally Posted by Jae Onasi
I suspect someone's Force signature is as unique as their fingerprints
Random Imp: There's no-one on board, sir. According to the log, the crew abandoned ship right after takeoff. It must be a decoy, sir; several of the escape pods have been jetissoned.
Vader: Did you find any droids?
Imp: No, sir. If there were any on board, they must also have jetissoned.
Vader: Send a scanning crew aboard - I want every part of this ship checked. I sense something ... a presence I've not felt, since ...
Vader walks off without explaining himself. Exeunt Vader and accompanying Stormtroopers.