2. Ask him who is his boss and co-workers and have them identify themselves in their true form.

This again is doing things in a backward way, relying on a potential imposter to provide a backing as reassurance of authenticity, so you are asking the criminal to out themselves, their true status. As imposters, they are engaged in high-level corruption and deception. A simple question like this has no chance of being a valid check. It might be effective with a low-level consciousness of certain origins, but most imposters who commandeer channelers and misguide them are extraterrestrial psychics, physical beings who are highly intelligent and crafty and fully cognizant of human culture and religious lore, as well as the metaphysical beliefs of many lines of thinking, so they can pretend to have all the trappings of an advanced soul like an ascended master or an angelic being and easily pass such a test question.