Hang on sport (humble). First, Big Love is dealing with Mormons, not JWs. However, as has been discussed numerous times, there are similarities. Certainly the excommunication/disfellowshipping practice is similar. Being cut off forever from family is exactly the same. The only difference that I've noted is the everlasting cutting off is also in the afterlife (heaven) with the one being cut off cast into eternal darkness as opposed to the JW view of not being resurrected in paradise on earth. The net result is the same.
Secondly, I found the scene moving in that it was very similar to a judicial committee meeting. BTW - I'm still active and have set on the other side of the table from Barb many times. The question about a recording device is standard. I've never seen bags removed but in a high profile case such as the one depicted, I could see that happening. Also, I think there were 5 leaders there as opposed to the standard JC of 3. Again, in high profile cases, JCs don't have to be limited to 3 (see the Flock book for details). Finally, Barb was able to bring a witness to take notes. This is NOT allowed unless the person facing the JC is a minor, then the parent is allowed to sit in, according to the rules. I've heard cases of elders not following the rules regarding this.
The anxiety that the character showed is dead on. She was given a chance to repent which she said no to. She knew the axe was going to fall which of course it did. But, she did what she tought was right despite the consequences. Not saying I'm agreeing with her stance, just that at least she followed her convictions as did the committee however misguided both are.
Honestly, I felt deep shame in having ever participated in JCs. To watch the pain and to think about the pain others have gone through was tough. My heart goes out to all who have had to endure this type of treatment.
Edited - FM am I correct about shunning on the Mormon side?