- Make sure there are no items in the interrogation room, on which one could concentrate his attention. - If the offender spent a long time in cramped conditions, was forced to stand or sit on the floor, you need to prepare a comfortable soft chair for him. - In no case allow that, so that the potential offender knows how much time has passed since the beginning of the interrogation or could assume, when it ends. - Make it clear to the criminal that you already know everything and now you just need to make sure you are right... Your goal: maximum disorientation in space and time. These and a thousand other tips are contained in a book that has long become a classic of criminal psychology. Read about how to get a criminal to admit his guilt, how to conduct cross-examination, read the book by F. Wellman. The publication is supplemented with excerpts from teaching aids for CIA officers