Ok, at the request of a player I am posting this question:
Are the words of the Inquisition law?
So in effect, can one sue the Inquisition for criminal acts committed by them and get recompensation if the Inquisitor would be proven to have broken the law?
Are the words of the Inquisition law? In the most strictest of terms and interpretations, by all accounts I am aware of, that's a yes. Arguably.
The Lex Imperialis is a labyrinthine puzzle-maze of stacked pyramids full of false walls, moving corridors, immovable objects and unstoppable forces. I think that when it comes down to it, yes, the Inquisition's word is law, in so much as in theory, the Imperium is a feudal system, and the Inquisition only answers to the High Lords of Terra and the God-Emperor, while at the same time, the Inquisition has a mandate to investigate even the High Lords, making for a funny relationship.
In practice, however, it is much more complicated. While the Imperium is a feudal system built on a pretty much standard pyramid scheme, each servant is more or less only answerable to his own lord (or lady), meaning that while yes, the Inquisition is right there up at the top, that menial communications officer aboard Port Wander only answers to the Navy Commander, he's in fact in his direct "employ".
In this example however, it is likely that the Communications Officer would comply simply because, well, it's the Inquisition! A higher officer, however, might insist that it goes through the proper channels, even if he's afraid of the Inquisition. An even lower menial might not even know what the Inquisition really is, while someone part of another organization - let's say the Ecclesiarchy - might insist that you go through his superior, from top to bottom, from the lowest lay priest to the Ecclesiarch himself, simply because they may not recognize the Inquisitor's personal authority, or hold the direct authority of the next higher authority of their own structure(s) in higher regard.
So, to answer your question: Maybe?
I agree with everything Lynata said (as usual), and I agree mostly with Adeptus-B too (as usual). Note that having the authority to perform certain missions doesn't mean that there won't be a mountain of paperwork to explain your actions, or that the local authorities or power-players recognizes that authority just because you say so. It's my personal interpretation that the Acolytes have very little authority overall, and usually doesn't even have the means to identify themselves as the Inquisition.
Last, as for suing the Inquisition? Hahahaha, no.
Edit: You might be able to file a complain, but the Inquisition will police itself and itself only. Nothing they do will go on public record, and no public trials will be held. Expect this only to even be debatable if you are a major power-player of some kind, like a noble with significant pull, a sector commander, a general or admiral, or a planetary governor.
Edited by Fgdsfg, 31 July 2014 - 01:42 AM.