Of course, we all know that this is a no no. The 'Flock' book (Elders Manual) makes this quite clear and upon arriving at your Judicial hearing one of the first questions you will be asked is whether you have any recording/transmitting equipment with you.
However, most JW's will have never seen - or even heard of - the 'Flock' book. Do a search on the WT CD on recording meetings and you will see that it all pertains to the recording of meetings at the Kingdom Hall and conventions and that any brother wishing to make such recordings is free to do so so long as the recording equipment is not attached to the Society's equipment. The one question of propriety that is raised has to do with recording prayers. Again, this is permitted (since prayers are recorded in the Bible) but brothers are encouraged to seek the permission of the one making the prayer first.
Back to the Judicial hearings.
Take your recorder with you - don't hide it. You will be asked to leave it in the car/foyer/restroom, anywhere but the actual place of the meeting. The elders will insist that the meeting cannot proceed if you are going to attempt to record it. Ask them why!
They will of course answer that they are only following the Society's guidelines. Ask them which Watchtower or 'Our Kingdom Ministry' carries these guidelines. If they are honest they'll tell you that the instructions are found in their manual 'Pay Attention to Yourselves and to all the Flock'.
Ask them for a copy of the book for as long as the judicial proceedings against you may last - say you'll be glad to return it afterwards. Perhaps they'll laugh, perhaps they'll sneer - either way you won't get that book.
Ask them if they truly expect you to submit to a private hearing with no witnesses, observers or recordings. A hearing conducted by a set of guidelines, rules and policies to which you are denied access.
Insist that you want this hearing to go ahead. You are not cancelling it you only insist on having it recorded for everyone's protection. They will refuse. Tell them that if they refuse to hear you out and choose to take action against you after you have made yourself available for the Judicial hearing and complied with all the Society's publicly available policies that you will sue them individually and collectively. Not the Watchtower Society, them!
If you don't want to play by their rules - don't. However, you can be quite effective by using their own primitive rules against them.
Nic'