The 2002 letter still talks about establishing two witnesses so with out the second witness the elder won't do much in the hall.
I had an experience where they elders were told by a sister that my daughter had told her she was abused sexually. They came over two of them took us out in to the car for privacy and told us. One elder even mentioned calling the police. Fortunately my daughter wasn't abused the sister was mistaken. But here is the thing, in the state I live in it's mandatory to report so the elders were compelled to tells us to report it to the police.