While it'd be stupid to buy and play a job you don't know anything about, having an amount of karma does not imply security experience. You'd want this to be locked behind a time limit. I'd personally be for just adding a separate title for security officers, like I see some people using the nurse job (lewd jokes aside), that shows that they don't really have much experience in the role and are still learning. I think officers already have enough people to go to for advice anyways; you have a warden, HoS, IAA, magistrate, NT rep, your fellow officers and mentors to ask for help and advice from. I see this resulting in something like internal affairs where they have no real authority and people will just argue with them all the time over trivial shit.