Maybe this does have something to do with the Judge's authority. The SA says to the Judge, you do not have the authority to force the Fbi or the Body farm to turn over discovery. The Judge says to Jb, you will have to ask for the discovery from the Fbi and Bodyfarm. If they say no, then we will have to get counsel from them in here.
So, perhaps the Judge may not have the authority to force them to turn over discovery, but he does have the authority to make them explain themselves. So, now its the moment of truth for SA. They will certainly have to expose this information now, because if they don't, the counsel's will. They want a little more time to prepare for this, and they want to put the decision on the Judge so they don't look bad. Of course I am just speculating here and Moo