A few inquiries:
1. Is the detectives’ incorruptibility enforced by any means other than elaborate recruitment practices and the sheer esprit de corps? I understand the function it serves in the game where you play the criminals, but I was wondering, is it enforced by any other means, occult or otherwise? Weekly disclosure sessions in the Truth Room, communal blood-bonding rituals, oaths which burn your mouth as you speak them?
2. Cannibalism: trendy, eco-conscious and a source of much needed gastronomical variety, sure, but how safe is it? If one just so happens to end up in possession of a basement-ful of freshly dead undesirables, a fully-operational sausage making machine and a certain willingness to defy convention, how does one diversify their supply of protein without any… gastroanimate distress? A spirit bottle or two seems like it might do the trick, but are there any other options? Asking for a friend.
1. Occult means could be used here, but I like the idea that they genuinely with no bullshit are incorruptible through the recruitment practices, the esprit de corps and probably the steadfast stubbornness of the individuals that keep that faction afloat. It’s funnier that way because it allows for phrases like “I’ve seen Forgotten Gods walk the earth, but this is the most bizarre and unnatural thing I’ve seen.”
2. Well, there are lightning hooks, wards, modified hollowfication rituals, cavalry with magic spears and horses that eat ghosts, whispers that can compel them, and most simply just let the consumers figure it out. If you process the meat, sell it and vanish within three days, it’s someone else’s problem.
Personally, I don’t feel that the Inspectors are /literally/ incorruptible. They’re just unnaturally clean by Doskvol standards — roughly the equivalent of a modern Western police force not known for inveterate corruption. My explanation for their reliability is a combination of recruiting standards, pride/esprit de corps and oversight by a firmly entrenched, proud core of veterans that relish the work. Surely, however, there are still one or two dark secrets hidden within or behind the department.
There must also be one or more individuals or organisations of significant power somewhere who feel that they benefit from an honest, reliable corps of Investigators, although their reasons are not necessarily noble.
Their internal oversight body would certainly have to have significant powers to investigate corruption (including the sort of things you suggest), but I don’t see these as being part of regular day-to-day operation.