Mr. Redlich. And as far as antimony is concerned, was there more on the outside than on the inside?
Mr. Gallagher. There was slightly less antimony on the outside of the cast than on the inside of the cast.
Mr. Redlich. Do you have any explanation for the presence of barium and antimony on the outside of the cast, and as part of the same question, do you have any explanation for their being more barium on the outside than the inside?
Mr. Gallagher. I have no explanation for this difference.
Mr. Redlich. Were you able to make determination as to whether the barium and antimony present on the inside cast was more than would be expected in the case of a person who had not fired a weapon or handled a fired weapon?
Mr. Gallagher. I found that there was more barium and antimony on the inside surface of the cast than you would find on the cheek of an individual who had recently washed his cheek. However, the significance of this antimony and barium on the inside of the cheek is not known.
Mr. Redlich. Is that because the outside surface acts as a sort of control on the basis of which you can make a comparison?
Mr. Gallagher. The outside surface of the cheek was run as a control for this particular specimen.
Mr. Redlich. And therefore the presence of a lesser amount of barium and a slightly larger amount of antimony on the inside surface was one of the reasons why you could not make a determination as to the significance of the barium and antimony on the inside surface, is that correct?
Mr. Gallagher. Yes, sir.