First it start by hypnosis the subject, the GHB is helpfull at this point. Then under hypnosis it is necessary to order him to not talk about his to anyone, and to make him believe that the organisation will destroy him if he talk of what happening to him to anyone. Also we need to make him believe that nobody will believe this anyway.
Then let’s print in his brain to come back in hypnosis with some code, and to not remember what happened during the session.
Then it is possible to give him little drug before the end of the hypnosis session, so after the session he will think he is ill, because too much work for example. The day after he will wonder what happened but without understanding
Then we have a subject which can come back in hypnosis any time and he will not talk about this to anyone
So it is possible to work on him during hypnosis session. It is better if the company for which he work for is involved, so the sessions can occur at work
Having some ghb in the coffee before the sessions is helpfull and help to do the session daily, the subject will not consciencously know perfectly what is happening to him. He will be instructed to forget everything.