. Guide to finger-print identification [electronic resource]. been reversed and then in printing reversed again?The fact must be got at very clearly from the first or there will be themost hopeless confusion and bewilderment. In patterns, which likethe letters H, O, I, X, can be turned upside down or either way,the danger of a mistake is even in one sense greater, but in so faragain the evidence for identification afforded by such patterns wouldbe much less convincing. Suppose we find such a mark as we might symbolically denote byH, which has been left on some weapon or other article at the sc
. Guide to finger-print identification [electronic resource]. been reversed and then in printing reversed again?The fact must be got at very clearly from the first or there will be themost hopeless confusion and bewilderment. In patterns, which likethe letters H, O, I, X, can be turned upside down or either way,the danger of a mistake is even in one sense greater, but in so faragain the evidence for identification afforded by such patterns wouldbe much less convincing. Suppose we find such a mark as we might symbolically denote byH, which has been left on some weapon or other article at the scene ofa crime. In the case of ordinary irreversible patterns, such as wemight denote by L or B, to prove identity we must find a suspect,one of whose finger-prints will agree with L or B respectively, onlywhen we get the imprint into the right position or that which itoccupied at the moment of imprint. But with H on the other hand, f See Preface to English Edition of Kants Prolegomena, by Dr. Paul Carus,[Kegan Paul, Trench, Triibner & Co., Ltd., 1902.]. Fig. 6. Whitened smudge ol same finger as in fig. 2, left on japanned tin, withwhite lines on dark ground (enlarged). 23 we might perhaps be able to find four suspects each agreeing with Hin some finger pattern printed in a different direction, which we mighthere describe for simplicity as north, south, east, and west. Now it isobvious that this would not form a scientific identification at all. Noexpert might be able to say which part of H during impression wasnorth, or south, or east, or west.
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