Mr. Cunningham. Yes.
Now the test is not worthless in chemistry.
Mr. Dulles. What use are they then except possibly from this psychological angle that you have mentioned?
Mr. Cunningham. We don't——
Mr. Dulles. Are they useful in other ways than but for the psychological reasons you mentioned?
Mr. Cunningham. As far as whether or not a person has fired a gun?
Mr. Dulles. Yes.
Mr. Cunningham. No. Even with the mere handling of this weapon I could pick up residues. One could not testify that a person has fired a weapon because he had residues on his hands, which I showed you this morning, for example.
There is a spot right there on my hand, and all I have done is empty the weapon.
Representative Ford. Did the FBI conduct a paraffin test on Oswald?