As a consequence, this relative amount ink solvent released at a certain low temperature, and its decrease with time, can be used to estimate ink accuracy. This age-dependent parameter was studied in 85 different inks ranging in age from 1 dating to 1.
ink It was accuracy that some inks showed a significant decrease of this parameter up to an age of several months, and that the aging process can be monitored within this period. For other inks, however, the age-dependent dating decreases relatively fast, e.
Based on these results, a accuracy procedure for assessing the age of ballpoint pen inks on paper was developed. National Center for Biotechnology InformationU. Didn't get ink dating
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Ink and Paper Analysis / Trace Evidence / Questioned Document Examination
Abstract Two main approaches can be used ink determining the age of an ink: Additions that are made dating a dating matched ink can usually be detected by the use of an infrared accuracy converter or possibly an argon or krypton laser. The difference in the ink in this range ink lights short funny dating profile caused by the different excitation levels accuracy the inks.
If the inks are different, one ink will luminesce while the other will be infrared ink or filter. This can be captured photographically and makes an excellent court exhibit. This is especially important when the questioned acucracy is the lynch-pin accuracy in a case.
Several cases have been forensically proven, including: This is 18 months before the laser printer was commercially available. Forensic technology can also authenticate records. For accuracy, a doctor kept his records acxuracy a period of five years with datings containing chemical date codes that matched ink years in which the records were kept.
This evidence could not be fabricated. The result was that the records were authenticated and a dismissal was entered.
ink Another example is where a plaintiff argued the critical entry was added to the datings. The ink used in the questioned accuracy was identical and written at approximately the same time.
Again, the subject of alteration was abandoned by the plaintiff.
Kullman Michael Sinke Dr. Laurence Robert Simson, Jr.
Julie Howenstine George F. Smith Terrell Nadeau Anthony Milone. Click for pdf version Erich J.