What kind of interrogation tactics have you experienced from your polygraphers and adjudicators?

I came up with this following list that I have personally experienced. 

//Interrogation Tactics (used by law enforcement, polygraphers and clearance adjudicators)
 
In this post, I will share common tactics that are used by interrogators which include: law enforcement officials, polygraphers and security clearance adjudicators. I am opposed to these tactics because they are unethical and can lead to false confessions.
 
Minimization Techniques: the interrogator will suggest that the subject's conduct is not as bad as they think it is. The interrogator might even share some conduct committed by their previous subjects in the past that is even more bizarre and out of the norm. They do this to desensitize the subject into believing that his or her conduct isn't that bad when in fact it really is a concern. When the subject is in a desensitized state of mind, they would be more willing to share embarrassing conduct that they would not have shared when they first walked in the door. 

 
We Already Know Technique: The interrogator who suspects that a subject as committed a crime will say something along the lines of, "We already know what you did so just confess!" or he might say "We already have evidence before us!" In reality, they don't have any kind of empirical evidence to substantiate their suspicions against the subject. It's just a little trick used to attempt to get someone to confess a crime, in the instance of the innocent, is not there.
 
Dead Stare Technique: The interrogator will not say a word but just stare at the subject dead into their eyes for several minutes at a time as the subject is talking. The interrogator will usually have a look of disbelief, anger and scrutiny on their face. This gives the subject the message that the interrogator does not believe a single word the subject is saying and that he is seeking a confession. //