And in many cases they're simply ignored. It depends on the local body often times not any hard and fast rule.
In the case I commented on earlier it was the CO who put the kybosh on the investigation citing the "she has been inactive for a few years and the local community don't view her as a witness" principle even though that was debatable to say the least and there were elders gunning for her.
It's not what you know or what you do in JWland it's who you are related to.
Favouritism and nepotism was rife in every cong I was ever in