It just occurred to me that very possibly the JWs are violating their own rule of "two witnesses" to convict a member of sin.
They have also long held the rule that if a man and a woman spend the night alone, this is evidence of adultery - but are there really two witnesses to adultery? At the most, it would mean that there could have been two witnesses that they stayed under one roof for the night - not necessarily that they did the deed. I personally know of certain cases where people have been DFd on this kind of "evidence" even when they protested that no sex took place.
What it made me think about is the greatly restrictive rule on proof of child molestation - here it is practically impossible to obtain their standard of "two witnesses" - in this case, the witnesses have to effectively observe the actual act of molestation.
Is this a double standard? Seems so to me, after thinking about it.