Here Polton, who had been, by degrees, rising to an erect posture, smote his thigh a resounding thwack and chuckled aloud, a proceeding that caused all eyes, including those of the judge, to be turned on him.
"If that noise is repeated," said the judge, with a stony stare at the horrified offender—who had shrunk into the very smallest space that I have ever seen a human being occupy—"I shall cause the person who made it to be removed from the court."
"I understand, then," pursued Anstey, "that you consider the thumb-print, which has been sworn to as the prisoner's, to be a forgery?"
"Yes. It is a forgery."
"But is it possible to forge a thumb-print or a finger-print?"
"It is not only possible, but quite easy to do."
"As easy as to forge a signature, for instance?"
"Much more so, and infinitely more secure. A signature, being written with a pen, requires that the forgery should also be written with a pen, a process demanding very special skill and, after all, never resulting in an absolute facsimile. But a finger-print is a stamped impression—the finger-tip being the stamp; and it is only necessary to obtain a stamp identical in character with the finger-tip, in order to produce an impression which is an absolute facsimile, in every respect, of the original, and totally indistinguishable from it."
"Would there be no means at all of detecting the difference between a forged finger-print and the genuine original?"
"None whatever; for the reason that there would be no difference to detect."