I can't find the message from Gav, but I asked the same thing long time ago and you can not get arrested on Darkness planet. It works like any other faction controlled planet, it is not controlled by None or deep space. Admins/Darkness would need to give out A/E permissions, which they don't.
If they do its some kind of of admin power abuse favouring the person who is arresting and we should burn them on a stake =P
Moons can't fly.
+++ Level 5 FI Operator - Free Service +++