Want to know how rigid is the WTS as regards to the "2 Witness" rule?
Check out 2 points from MTS:
1. In the Judicial Committees lesson, the instructor repeated that only with confession or with 2 witnesses is a JC formed. When asked by a student "What about photos taken? What about tapes? What about videos?" his response was "Again: 2 witnesses. That is the rule". You understand? Even if you have the whole matter on tape, it does not stand for JC forming. Only 2 witnesses (you can always extract a confession if you have a tape in hand, though, unless the sinner is clever enough to STILL deny it ).
You see why this becomes outrageous when it comes to a pedophile against whom there's only 1 witness (the kid).
2. In another lesson about the Mosaic law, we were told of the case (in Numbers) when a man suspected his wife of adultery but had no evidence, and she denied it. They would go to the High Priest, and he would do a (rather occult, actually) test, in which Jehovah himself -as a super witness- would provide answer, if she was unfaithful or not. If she proved to be unfaithful indeed, her punishment would not be death (as normally in adultery), but just some sterilization thing. Why that exception? Because there weren't 2 witnesses, even if Jehovah himself was the 1 witness.
So yeah, this seems to be a pretty solid rule of the WTS.