According to FI and GF, the 'Big Three' intelligence services in the Imperium are Army Intelligence, Naval Intelligence, and IISS Detached Duty Office Intelligence Branch (Scout Intelligence). Who else is there? IRIS doesn't exist, but Nobles mentions several other organizations:
* The Ministry of State has an Intelligence Division that coordinates intelligence from various sources, but also have agents of their own.
* The Office of Calendar Compliance is mentioned as having good opportunities to engage in intelligence gathering, although Nobles doesn't come right out and say it does. Maybe the office is the other half of the Imperiallines setup (see below)?
Any other anyone can think of?
Then on to speculation:
* The Ministry of Justice might have a covert intelligence branch.
* The Emperor has his own courier service, run through the Office of Personal Transportation (The Imperiallines setup). But what do the couriers move? Information, of course, and no doubt the occasional Imperial warrant-holder, but perhaps it also has some sort of intelligence-gathering aspect. As suggested above, maybe the Office of Calendar Compliance's covert branch reports directly to the Emperor through his courier network?
* I can't quite come up with anything for the ministries of Colonization, Commerce, Conservation, Information and Communication, or Technology.
* Dukes, sector dukes, and archdukes would have agents of their own in their respective demesnes. How extensive and how organized would vary from duchy to duchy, I think.
Hans
* The Ministry of State has an Intelligence Division that coordinates intelligence from various sources, but also have agents of their own.
* The Office of Calendar Compliance is mentioned as having good opportunities to engage in intelligence gathering, although Nobles doesn't come right out and say it does. Maybe the office is the other half of the Imperiallines setup (see below)?
Any other anyone can think of?
Then on to speculation:
* The Ministry of Justice might have a covert intelligence branch.
* The Emperor has his own courier service, run through the Office of Personal Transportation (The Imperiallines setup). But what do the couriers move? Information, of course, and no doubt the occasional Imperial warrant-holder, but perhaps it also has some sort of intelligence-gathering aspect. As suggested above, maybe the Office of Calendar Compliance's covert branch reports directly to the Emperor through his courier network?
* I can't quite come up with anything for the ministries of Colonization, Commerce, Conservation, Information and Communication, or Technology.
* Dukes, sector dukes, and archdukes would have agents of their own in their respective demesnes. How extensive and how organized would vary from duchy to duchy, I think.
Hans