The full transcript of the presentations of Arie Zeelenberg and Peter Swann, plus questions and answers of them and other witnesses, is available at:
http://www.scottish.parliament.uk/busin ... tm#Col3348
Arie Zeelenberg presented a highly detailed and somewhat technical explanation of why the mark known as “Y7” is excluded from Shirley McKie and cannot be an identification. He further went on to show that in spite of their criticism of the “internet image” of Y7 as being unclear, the SCRO themselves have been using that image in their presentations, especially one at Tulliallen. He also demonstrated that if the SCRO presentation at Tulliallen is to be believed, then there had to have been five different touches of tiny portions of Shirley McKie’s thumb in the middle of someone else’s fingerprint – all in such a manner that every ridge and every furrow lines up perfectly with no breaks or smudges. Mr. Zeelenberg concluded that not only was the identification erroneous, there is evidence of intent to mislead in the way the SCRO prepared their charts.
More amazing, however, was the testimony of Peter Swann. Mr. Swann admitted that his original verification of Y7 as having been made by Shirley McKie was made solely on the basis of the degraded, cropped charted enlargement of Y7 and the sixteen numbers with lines going into the chart. In his initial verification, Mr. Swann never once compared a photograph of the latent print itself with an inked print from Shirley McKie.
Where did Mr. Swann eventually get an inked print? Would you believe from the newspaper? Here is his testimony –
Stewart Stevenson: I point to two charts that you used in your presentation—charts C and F. It might be useful if you had them to hand. I have a couple of factual questions before I ask my real question. A set of 16 points is identified on print 1 on chart C, and on the right-hand side, 16 points are identified on the print from the Daily Mail. Was that mark-up done by you?
Peter Swann: Yes.
-- Then Later –
Alex Neil: Your first comparison was with a print that was supplied by the Daily Mail. How did the Daily Mail supply you with that picture?
Peter Swann: It did not. I just bought the Daily Mail and saw it there.
Alex Neil: So the picture that you used came out of a newspaper? Would that be a normal and professional way in which to compare a print?
Peter Swann: It was a good mark and a good impression. You use anything that you can get.
So presumably, it is all right for Mr. Swann to use images from newspaper articles for his comparisons, but nobody should use the images on the internet. Interesting. The questioning went on and Mr. Swann explained how he finally got real inked fingerprints of Shirley McKie –
Mr McFee: Last week, Charles Stewart said:
"I have never had a fingerprint form that has been taken high enough to the top of thumb to allow me to fully compare the top of the thumb to see whether it is continuous with the lower part. It could be continuous"
etc, etc. He went on to say:
"I cannot say definitely whether that happened, because I was unable to compare the top of the impression against the fingerprint form".—[Official Report, Justice 1 Committee, 30 May 2006; c 3243.]
Where did you get the impression—which Mr Stewart does not seem to have had—to allow you to compare the top of the print?
Peter Swann: It came via a solicitor called Peter Watson, acting on behalf of Shirley McKie. He sent me a piece of A4 white foolscap. On it was written, in red ink, "Fingerprints of Shirley McKie". There were four impressions taken in blue ink.
Mr McFee: How important is it to take an impression properly?
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Peter Swann: It is vital.
Mr McFee: Who took that impression?
Peter Swann: I have no idea, but it was somebody who knew what they were doing.
Somebody who knew what they were doing? On a piece of A4 white foolscap, in blue ink. Right. But wait – it gets better. We had assumed Mr. Swann had a photograph of the latent print to compare, but maybe not. When did Mr. Swann finally get a photograph of the latent print itself?
Mr McFee: When did you make your assessment that the top part of the thumbprint had been twisted by 60° or 66°?
Peter Swann: When I got, finally, an impression of the crime scene mark.
Mr McFee: Was that before or after the perjury trial?
Peter Swann: After.
So Mr. Swann made his initial identification only from the cropped, degraded charts of SCRO. Subsequently, he used a copy of Shirley McKie’s inked print he cut out of a newspaper. And then he got some fingerprints taken with blue stamp pad ink by a solicitor (lawyer) on regular paper. Only after Shirley McKie’s trial and acquittal did he ever get a full photograph of the latent print Y7 itself to compare to his newspaper cutting and blue fingerprints. Brilliant work, Mr. Swann!
On counting ridges between points, one Committee member pursued the following line of questioning –
Mike Pringle: Right. My question will probably show my ignorance of the situation. If we look at points 1 and 8 on the left-hand fingerprint on chart D, and then at points 1 and 8 on the print on the other side, there is obviously a substantial difference in the distance between point 1 and point 8. There is also a substantial difference between points 6 and 7 on the left-hand and right-hand charts. Why is there that difference?
Peter Swann: It is caused by the pressure that has been applied on the mark at the crime scene, and there could have been a twisting action that might possibly have had a bearing. The other print has been taken under ideal conditions. Pressure has broadened the ridges on the crime scene mark. The more you press down, the more you will flatten out the ridge structure and distances between ridges will appear to be wider.
Mike Pringle: I can see four different ridges between points 1 and 8 on the right-hand side print on chart D. Is that right?
Peter Swann: Yes.
Mike Pringle: There are four ridges between the two points on the right-hard print, but it looks as if there are about six or seven on the left-hand print.
Peter Swann: It does, I agree, but it is caused by the pressure that was applied when the mark was laid down.
Ah. Pressure adds ridges between two points. I’m glad to know that. I can only conclude that the Glasgow Bureau of SCRO applies the same pressure analysis techniques for counting ridges between two points that Peter Swann does. No wonder they reached the same erroneous conclusion.
Read the transcript. Then, if you cannot find a copy of the Daily Mail to get your fingerprint images, go to
www.onin.com and download the uncompressed images there. Do your own analysis of the latent print and comparison with the inked print. Form your own conclusions.
For those of you who are not fingerprint experts, it is clear that those who claim and present this comparison as an identification do so in order to protect their reputations. As Pat Wertheim suggested during the inquiry, the truth will be known in the history books:
"I know what they will say 20 or 30 years from now. In the long run the case will not have an adverse effect on the science of fingerprints—it is a low speed bump on that road. I am comfortable with what the history books will say and I am comfortable with my place in them. The case has come up in cross-examination all over the world. Mr Bayle ran into it in Australia and in the United States I have been cross-examined about the case by attorneys who did not know that I was involved in it.
"The point is that, in the long run, history will record that an erroneous identification was made by the Glasgow bureau of the SCRO. I do not believe that the case will affect the science worldwide in the long run. How it affects the practice of fingerprints in Scotland in the short term is the issue with which the ladies and gentlemen on the committee have to deal."