[G. Kashkanun Anderson]

To be clear: both the Imperial Naval Intelligence (INI) and the Imperial Ministry of Justice (MOJ) are Imperium-wide in their scope; it's their mandates that are limited. You can find INI and MOJ agents all over the Imperium, even if (officially) they are limited in their duties to specified, separate roles.

The Scouts, too, have a security arm (which seems to be more concerned with internal affairs) and the famous Detached Duty Office, the debriefing agency that anyone who's been given an old scout ship should be intimately familiar with. The IISS probably knows a heckuva lot more about what's really going on than they ever let on.

Bureaucratic turf-wrangling being what it is, of course, I'm sure there's a tremendous amount of overlap between the agencies -- as well between them and the semi-official groups floating around out there (Imperiallines, the megacorporations, individual major worlds, the Travellers' Aid Society, etc.).