Mr. Herndon.

I'm going to place that around your chest, sir. This is what we call the pneumograph and that will accurately record you respiratory pattern as you inhale and exhale. Would you be kind enough to raise your arms, sir?

Mr. Ruby.

(Reporter's note: 2:58 p.m.)

Mr. Herndon.

Now, as you can see, as you inhale the tube stretches, and as you exhale it decreases in size and I will have a tracing of it on the polygraph.

Mr. Ruby.

Yes.

Mr. Herndon.

During the examination and as we run the test, I would appreciate it if you would sit perfectly relaxed, rather straight in the chair, with both of your feet flat on the floor. Now, that will record, during the interview, the tracing of your breathing, and I want you for this reason to breathe perfectly normal and perfectly relaxed. Now, the next thing I want to put on will be on your hand and I'll put it on your right hand here. I notice you have one finger cut off on that hand. What happened there, Mr. Ruby?

Mr. Ruby.

Oh, running a nightclub you get involved in various altercations.

Mr. Herndon.

Now, this next component that I want you to see will be what we call the Galvanic Skin Response, GSR. I'm going to place these on your fingers, and actually all this simply does, through these instruments and the electronic processes, is to record any variance in the electrical conductivity or the resistance of your skin. It's helpful to me in this examination. Your hands are very good. They are not sweating a bit. Is that too tight?

Mr. Ruby.

No.

Mr. Herndon.

Is it uncomfortable?

Mr. Ruby.

No.

Mr. Herndon.

All right, Mr. Ruby. Now, neither one of these two components will you feel at all. That will be no problem at all.

Mr. Ruby.

All right.

Mr. Herndon.

Now, the next component that I will put on your left arm because it's closer to your heart, and this is the cardiograph cuff, and this is going to give me an accurate tracing of any relative changes in your blood pressure. These will just be relative changes. I won't be able to necessarily know what your blood pressure is. I will have relative blood pressure changes, and I will also have on a chart a change in any heartbeat or heart rate you might have.
Now, I am going to record all these physiological responses as we discuss the questions, and as you answer them I will have an indication of what is taking place physiologically, what is going on in your physical system, and which will assist me in interpreting whether or not you may be deceiving with regard to the question.

Mr. Ruby.

What is your name, please, sir?

Mr. Wood.

Wood. I'm with the FBI.

Mr. Ruby.

Where is Shanklin, I thought he was supposed to be here?

Mr. Wood.

He is in town but he is not here.

Mr. Ruby.

Isn't Mr, Shanklin the chief?

Mr. Herndon.

Do you want to relax your arm, Mr. Ruby? Now, do you have any questions about what I've done so far, Mr. Ruby?

Mr. Ruby.

No. Do you want me to relate my story to you now?

Mr. Herndon.

No; I want you to sit perfectly still. There will be no conversation, and I'm going to get the instrument adjusted to you. That will take only a few minutes, so just sit and try not to move. I'm not going to ask you any questions at this time. I just want to adjust the machine to you.

Mr. Specter.

Mr. Herndon, have you now covered all the preliminaries up to the point of asking the questions?

Mr. Herndon.

Just about. I will probably repeat some basic instructions for Mr. Ruby just before we start asking him the questions.

Mr. Specter.

All right, then I think those who are going to leave should leave now so that we are ready to go as soon as your instrument is in tune.
May the record show that Mr. Alexander has left the room.