In MC when you join you join legal or illegal. If join legal any crime you get booted from MC but I think you also get bounties, sure Ive picked up penalties in MC but that was a while ago, not sure recently as I was doing PP at the time which the person in my ship wasnt so no idea if they would have got a PP bounty or even if classed as illegal if they were. If illegal you all share the consequences but stay in MC. The owner gets a lot of control over what you can and cant control with modules and weapons even with turreted, which some arent.
Its in response to griefers 'ganking'* people by joining MC and attacking peeps or police to get a bounty, messing with modules, chucking chaff and heatsinks. Presumably they would have turned shields off or gone silent running or triggered self-destruct if able to. Some people just basically abuse whatever is there and say 'its not against the rules'. Some people huh? Its almost as if they do short term things for short term 'gains', spoil the game for everyone and then just move onto a new game, almost as if they didnt care about the game at all in the first place, almost as if the point wasnt the game but the target, the RW person and the accessibility and ease to grief them.
*I know I misused ganking here but its how it was defended, as allowable ganking not griefing.
You could say you were just an observer. You could say they gave false pretense and then things got out of hand. You didn't mean to fire the turreted frag cannon, your finger slipped...
Unfortunately the above removes my plausible deniability, I have to consciously accept to do crime/illegality with all its consequences.