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The type of ink does not preclude this examination.

If the initial date of commercial availability is more recent than the supposed date of the examined writing, then the document is not what it purports.

If additional entries are available that can be considered “known” regarding their preparation date, then comparative analysis may provide evidence to indicate the preparation date of the “questioned” writings.

Additionally, it is possible to measure the quantity of several semi- volatile components that are present in ink.

As the ink ages these components decrease and thus the approximate age of the writing can be determined.

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We can determine the first date of commercial availability of the ink used to prepare any handwritten or handprinted material.

Because the samples are normally taken from the entire area of writing the legibility of the writing and the ability to perform additional tests are maintained.

In those instances where minimal writing or material exists, the extent to which an examination can be performed will be evaluated individually.

The chemical testing that is referenced does require removal of samples from the document.

Normally these samples are removed with a hypodermic needle sized hole punch and do not affect the legibility of the material.

816 comments

  1. Having a basic knowledge of paper is important for collectors and dealers. Many fakes and reprints are identified as the paper is too modern or the wrong.

  2. To find scientific evidence of paper age and origin. There's more to a piece of paper than meets the eye - and paper analysis can find it. This specialized.

  3. A novel approach for the identification and dating of the fountain pen ink entries on paper has been established by ion-pairing high-performance liquid.

  4. In this paper we describe a case in which a cash book, dated of the year 2000, was sent to the Forensic Science Division, Document Laboratory, Zurich Canton Police in.

  5. A novel approach for the identification and dating of the fountain pen ink entries on paper has been established by ion-pairing high-performance liquid chromatography.

  6. An Independent Assessment of Ink Age Determination by a Private Examiner; Crime and Punishment Volume 3 Questioned Documents Ink Dating; How a Forensic Laboratory Can.

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