If they were trying everything they could, they would have someone posing as a prison (an expert in making one feeling confident) next to Joran to see if he says anything.
BUT, everyone is friends there - so that won't happen.
Heck, if so they would accidently F'up and solve this case.NSNR
It is a brotherhood of thiefs and pirates and drug dealers. I wish Sen Shelby could arrange for a CIA agent to get locked up with Jurine.