[That... catches him off-guard. Not the accusation, but before that - the implication that even Jacinthe, one of the wealthiest and most influential people here in Lumiose, is unaware of how exactly her retainer is doing. Maybe it says something about the medical system and how uncorruptible it is that the woman can't just buy that information, but mostly it speaks volumes to Jacinthe's worry. It also explains what she goes on to say, and though Corbeau's eyebrows rise, he doesn't allow himself to rile at the accusation.

It is a perfectly sound idea, after all. Where else would one look other than the Poison-type trainer who deals in underhanded deals?]

Rest assured that we do not trade in buying or selling Pokémon, Jacinthe. Should we bring any Koffing into Lumiose, it is only to be used by one of us. If we had any hand in this, it'd be all too obvious - we aren't exactly in the habit of poisoning people, anyway.

[It'd be too damn obvious. Too easy to trace back to them.]

To answer plainly: we had nothing to do with this. I'll vouch for everyone under my command. Not a single person here had any reason to target you, and if I were to uncover any sort of secret plot to poison you, I'd make sure it wouldn't be an issue again.

[The Rust Syndicate wouldn't do something like this. Sure, they're the damn mafia in Lumiose, but Corbeau vets his employees thoroughly. He only works with those he can trust - and he's not exactly eager to work with those willing to kill people.]

Unfortunately, all you've got to go on is my word, but if you'd like to speak with the others here, you may.