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Comparative analysis of a particular document against other documents from the same source and the same period may also be of assistance or may identify a particular time frame in which a particular organisation used a particular paper type.
Similarities in paper type, colour, content, fibres, sizes etc can yield valuable information when determining similarities or differences between papers.
This ink dating method primarily involves microscopic examinations and can also incorporate some basic chemical solubility testing.
Some examinations can be performed on fountain pens to determine type of nib, type of ink and the first date of introduction of each of these.
For example, if transfers of ink are found on several pages of a diary, it indicates that the corresponding entries on the diary were made in a single sitting, not over a longer period as suggested by the dates.
Ink and Toner Intersections – When a signature (or a handwritten notation) intersects a printed text on a document, a forensic document examiner may be asked which came first, the text or the signature (handwritten notation).
As online dating matures, however, it is likely that more and more people will avail themselves of these services, and if development — and use — of these sites is guided by rigorous psychological science, they may become a more promising way for people to meet their perfect partners. Finkel discuss the science behind online dating at the 24th APS Annual Convention.
Other pages discuss the use of infrared to discriminate the differences between inks that visually and microscopically look identical.
Other ink entries are not necessary for comparison. Aginsky has developed the SET as a result of many years of research of the ink aging methodology developed and published by Dr. For example, if the questioned document’s date precedes the manufacturing date for the ink used to sign the document, it is established that the document could not have been signed on the date it bears. Such intra-comparisons of inks may reveal that the questioned entries were not written contemporaneously with the other entries in the file (document). – The examination’s purpose is to assess whether the use of various inks on the document(s) fits a pattern that is either consistent with the dates appearing on the document(s) or indicates preparation "at one time" (during a short period of time). Paper folds – It is often possible to determine whether an ink line that intersects a paper fold was written before or after the paper was folded.
Offset marks – When two pieces of paper are pressed together, marks such as writing (and printing) may be transferred from one to another.
These ink dating methods include the comparison of the examined ink to a known library of standards, commonly called the library approach, the detection of chemical date tags placed in the ink purposefully by the manufacturer, commonly called the date tag method, and also the determination of the type of ink writing instrument used.
The determination of the type of writing instrument is probably the oldest method of ink dating.
Read the Full Text Many of us enter the dating pool looking for that special someone, but finding a romantic partner can be difficult. Dating sites provide access to more potential partners than do traditional dating methods, but the act of browsing and comparing large numbers of profiles can lead individuals to commoditize potential partners and can reduce their willingness to commit to any one person.