[rt-users] Where can I finda script that is already installed and working?

[Gabriel - IP Guys]

I'm taking over the management of a server, which has RT on it, and
there is a script running on one of the queues, that basically does the
following,

If you are known to the RT system, then you know who comments on your
tickets. For example, George and Bob, are RT users. If George is a
requestor on a ticket, he can see that Bob @ RT make the comment/reply.
But if user253 at hot-snail.com creates a ticket, he only sees help @ RT.

This script currently works on one of our queues, yet I cannot find this
of have any idea where to begin. I don't even have the name for this
script.

Please help :)