Just one opinion: The situation here is not typical, the motion by the State is not typical, and the response by the defense is bizarre. Given the competing legal interests and concerns, I have no idea how the court will deal with it. A judge likes to be guided by intelligent briefs from the parties, addressing the legal issues. So much for that here. Judges are pretty protective, especially when dealing with a criminal defendant, of A/C privilege. In a notorious case like this, the court is likely, despite defense bumbling, to bend over backward to protect the defendant (really, to protect any ultimate verdict in the case, which is going to cost the taxpayers a lot of money and resources).
That is what the state says this motion is all about. They suspect a conflict of interest, and want to make sure the the defendant fully understands it and knowingly consents NOW, so it won't be a post-trial appellate issue. Talk of a mistrial is premature, BTW, because we aren't in trial yet, making a mistake that can be corrected no other way.
As far as testimony by Casey, it seems the State contemplates some revelation of the terms of the retainer agreement or other possible business agreements between Casey and her lawyers, to see if there is a conflict of interests. Then they seem to expect some on the record waiver by Casey, a statement that she understands and is fine with it all. It's similar to when the court asks her other questions in court, whether she understands, waives her rights, etc. I don't think anyone expects wide-ranging questioning of her, certainly not about the merits of the murder charge. They only want to hear enough to preclude her from complaining about being exploited or duped later.
As far as the affidavit, I think she is trying to offer up their own version of what I've described above, to satisfy the court and stop the hearing. I don't think it's adequate for that, but we'll see. Putting "story" in quotes, sarcastically, probably wasn't the best idea. The handwritten stuff about the SA is just superfluous and should be stricken. Yes, she used her affidavit, which is by definition a one-sided sworn statement, for a little "I'm innocent" PR, but that isn't going to waive her 5th amendment rights. It's offensive as all get out, absolutely, and it's so frushtrating that she got her little tantrum on the record, we can hardly talk. But she won't waive her 5th amendment rights unless she chooses to testify at trial. This really is no more than she has already said in her not guilty plea.
I'm really interested to see what the court does with this, and today I'm really glad not to be Judge Strickland.