Board Thread:Warhammer 40k Roleplay/@comment-28917471-20141208074850/@comment-28917471-20141210085017

OOC: Master of Agony. The only Adepts that know the existence of the Daemons and the Chaos Gods are the Inquisition, the Space Marines and the Grey Knights. All other Adepts know that the Warp is evil and dreadful, but they don't know the actual existence of the Chaos Gods. The existence of Chaos itself is the greatest secret that the Imperium tries to keep.

So you could execute those guys for being Heretics, but the Ecclesiarchy do not know the names of the Chaos Gods, and even if they did, they would be automatically branded as Heretics and Traitors, so they would not reveal themselves(in short, you should edit your post).