02-04-2013, 02:59 AM
I have never heard of not getting any reactions to control questions.
A control question is one in which the operator asks the witness a question that he can predict the outcome. HE does this to get good test readings to compare the relevant questions to.
An experienced operator knows the questions to ask here in order to get the desired result.
For instance, if he wants to get a truthful answer, he will ask him for the color of his car. OR how many kids he has. Or how long he has been married.
To get a negative response he will ask a question to which he thinks the witness will try and conceal something in order to get a deceptive criteria on the machine. These are easy to find or probe with. Since everyone has certain things they try and conceal. Usually of a personal nature.
To not to be able to get a reading on control questions is really unusual. I have heard of the other type, where the witness is so hyped up the machine is going off the rails. But to get no reaction at all, I don't think I have ever come across that.
A control question is one in which the operator asks the witness a question that he can predict the outcome. HE does this to get good test readings to compare the relevant questions to.
An experienced operator knows the questions to ask here in order to get the desired result.
For instance, if he wants to get a truthful answer, he will ask him for the color of his car. OR how many kids he has. Or how long he has been married.
To get a negative response he will ask a question to which he thinks the witness will try and conceal something in order to get a deceptive criteria on the machine. These are easy to find or probe with. Since everyone has certain things they try and conceal. Usually of a personal nature.
To not to be able to get a reading on control questions is really unusual. I have heard of the other type, where the witness is so hyped up the machine is going off the rails. But to get no reaction at all, I don't think I have ever come across that.