HCOB 11 June 1957 "Training and CCH Processes" 
HCOB 17 July 1957 "Changes in Training Drills" 

Scientology Clear Procedure, Issue I, December 1957 

PAB No. 152 "The Five Levels of Indoctrination" 

PAB No. 153 "C.C.H." 

ACC Manual 

Plain 8C is given without stress on control or anything of the sort. You
don't touch or handle the person. 
If we have not directed him to do something and he does it, if the way he
does something is a little different from what we expect, we really have no
basis for objection. 

"Look at that wall."
"Thank you."

"Walk over to that wall."

"Thank you."

"With your right hand, touch that wall."

"Thank you."

"Turn around."

"Thank you."

Run repetitively to end point. 

End Point
Run the process until a realization occurs, or an ability is regained.