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acknowledgements for ansi/nist-itl 1-2011 - NIST Visual Image ...

acknowledgements for ansi/nist-itl 1-2011 - NIST Visual Image ...

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ANSI/<strong>NIST</strong>-ITL 1-<strong>2011</strong> - UPDATE 2013 DRAFT VERSION• The second in<strong>for</strong>mation item (object or substrate description / OSD) isoptional and may contain text that describes the object or surface on whichthe print was deposited, or provides clarifying in<strong>for</strong>mation regarding thesubstrate. An example is “Neck of green glass beer bottle”.8.9.7.45 Field 9.356: EFS latent matrix / LMTThis field is used to define the matrix, or substance deposited by the finger that <strong>for</strong>msthe impression. Each latent matrix is represented by a separate data entry (repeatingsubfield). This field consists of two in<strong>for</strong>mation items:• The first in<strong>for</strong>mation item is mandatory and indicates the type of matrix /TOM, from the Code column of Table 52. All visible contaminants areapparent rather than necessarily known to certainty: <strong>for</strong> example, thesubstrate may be marked as blood if it appears to be blood; if known <strong>for</strong>certain that should be indicated as a comment.• The second in<strong>for</strong>mation item (comment / CLA) is optional and maycontain text that provides clarifying in<strong>for</strong>mation regarding the matrix.May, 2013 DRAFT VERSION UPDATE 2013 Page 175

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