Anything KC says in jail can be used against her. The only time it can not, is during a private meeting with her lawyer. Just talking to her lawyer in the hall, doesn't count as 'private.'
To me that means that even if he had a GF that worked at the Jail, it matters not. That doesn't automatically prove that the info was gotten illegally.
JB would have to make that case, and prove it. Which means that he would have to state that such a conversation took place, where it took place, and when. So it could be proven that the GF was the officer in charge of 'watching' them and in the situation to over hear the PRIVATE conversation between client and lawyer. THEN and only THEN could it be tossed out.
Legals, Am I seeing this correctly?
It's not a sure thing that the GF was any where near KC, much less a guard that could overhear client/lawyer talk. Or if she heard something, that it wasn't just a theory she heard from workers/prisoner/etc, and repeated it to BF.
I think that it was playing mind games with JB & crew with the gf info.