Captain Bill Robertson
There are many rumors about Captain Bill Robertson (CBR). I will here attempt to stick to the facts so that you can decide for yourself.
CBR left the Sea Org in the beginning of the eighties. He founded a group called the ”Galactic Patrol” and started shortly thereafter to issue Sector Operations Bulletins. As far as I can tell he issued 22 in total during the period between '82 and '86 - you can see some of them here.
CBR alias Astar Paramejgian
Bulletin no. 10 is signed by Astar Paramejgian, which is a name CBR gave himself.
When you have read those bulletins I will leave it up to you to evaluate the content, but maybe this reference will help:
Another question one can ask is how he received these bulletins from LRH? Well, considering that CBR hasn't been in physical communication with him since 81, then there can be no other answer except that it has been done telepathically. Something CBR is quite accustomed to.
He also issued other materials and briefings which is to a large extent available on the internet. I have downloaded them all from Ron’s Org Frankfurt's homepage and you can see excerpts from some of them here.