Larry Watson, Jeffrey A. Stern, John D. Lester W. The Court GRANTED this motion on the record at a pretrial conference, and promised to explain its ruling in more detail in an opinion to be issued later. Thereafter, the parties settled their dispute, based at least to some degree on the Court’s ruling on the motion in limine. Furthermore, because of the importance of the issues raised in the motion in limine, and because the Court promised it would explain its reasoning, the Court provides here an explanation of its conclusion regarding the admissibility of Mr. Speckin’s expert testimony. The Court granted the motion in limine for the reasons and to the extent stated below. Ethan Allen retained Speckin to offer expert testimony regarding the age of certain ink writings found on a handwritten letter. The letter was written by plaintiff Tracey Mora to Ann Emanuele, a manager at Ethan Allen, and describes sexual harassment that Mora claims she suffered.
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Oct 9, designers, and forensic and. Oct 9, identifying ‘ink tags’ to indicate. Indirect dating may provide additional molecular information.
Ink Dating experts serve as expert witnesses and forensic consultants in California legal matters, and provide expert reports and testimony for judges, attorneys.
Forensic evidence and expertise in court – The Courtroom. Furthermore, the questioned inks matched in formulation to other inks contained in the diaries but was a different batch of ink than any unquestioned ink in any of the four years of writing that was submitted, but all the ink in the questioned entries are consistent with one another. Based on this evidence it was concluded that the entries were not written at many different times throughout the years, as purported by the author; but instead at all the same time or near the same time.
The doctor denied writing these entries. A handwriting examination was conducted on these words, which is detailed in an earlier chapter as well as a relative ink age comparison, which is in the next chapter. A thin layer chromatography examination was conducted on the two questioned entries and compared to the writings known to have been written by the doctor denying authorship, as well as several dozen comparison samples from other writers throughout the chart.
It was found that the questioned portions were written with a pen that only matched writings known to have been done by the doctor that was denying authorship and was a different ink and different pen than any writing that was done elsewhere in the chart by any other writer in the dozens of entries that were used for comparison purposes. This evidence butriced the conclusion of authorship that was arrived at from the handwriting examination.
Ink dating – third case example – In the third example a day planner contained one questioned entry in a diary for the calendar year The entry was written with a blue ballpoint ink.
Forensic science of dating inks fine tuned
Document Examination Experts. Forged, altered or counterfeit documents. Checks, Wills, Deeds, Legal Contracts. Insurance Records.
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Register or Login. ScienceDaily shares links with scholarly publications in the TrendMD network and earns ink from old-party advertisers, where indicated. Dating all the latest top news in the environmental sciences, and browse the topics below:. Have questions? Give us a call IPS Testing is able to determine likely age ranges for analysis products by might wood fibers, pulping chemistry, paper document and signature treatments to serve as dating markers.
Ink dating is a highly specialized forensic examination and considered to be one extensive experience as a forensic chemist and document dating specialist.
But this technique is also able to overcome other stumbling blocks relating to the amount of ink deposited when writing and the type of paper used, as these variables hamper the dating of a document by means of traditional methods. What is more, the new technique reduces the number of punctures needed to analyse the writing on a document to just one. Determining the age of a document to find out whether it is authentic is a task influenced by the type of paper on which it has been written, the pressure of the stroke -the amount of ink deposited when the writing was done- or even the technique used.
Until now, document dating methods have been able to indicate whether the writing was relatively new less than 90 days or older over two years , yet this chronological accuracy is insufficient in certain cases, above all in judicial ones. Each document was produced at different moments using a different ink stroke pressure, factors that may alter the results and lead to dating errors. During the natural ageing process of each sample, which had a known age, the research team analysed the evolution in the various volatile components.
EEOC v. Ethan Allen, Inc., 259 F. Supp. 2d 625 (N.D. Ohio 2003)
The need to answer questions about documents has existed since the earliest days of civilisation! Documents include not only those of the familiar paper form but may include other items and materials that can bear information. Forensic document examination started with experts giving evidence on matters of disputed writings. The range of questions that may be posed to document examiners are varied and may include but are not limited to:. This range of questions requires comprehensive training on a wide range of topics.
That is why the training to become a forensic document examiner requires a minimum of two years of full time training under the tutelage of a fully trained document examiner.
Most enquires regarding signature and handwriting comparisons typically fall into these two categories:. This is not asking who wrote it but instead, was it all written by only one person? The methodology of a signature or handwriting comparison depends on the following factors which influence what documents are required to endeavour to form a definite conclusion:. It is also normally essential to compare handwriting to handwriting and NOT handwriting to a signature as many writers will depart from the normal letter designs of their handwriting to write their signatures.
A sufficient quantity of specimen is required for a reasonably conclusive result. It is not possible to precisely advise on this quantity, as it will depend on the skill of the writer and the exclusiveness and complexity of their writing. When examining specimen, it is important to have a sufficient quantity of samples that will reveal the usual parameters of natural variation that all writers display in their handwriting, i.
It is also the case that some writers will use a range of designs or will vary the style or format depending on the circumstances of writing. A strong opinion is prevented where there is a risk that the specimen handwriting supplied in an examination does not necessarily reveal the full range of variation of the writer.
Forensic Laboratory – Analysis, Consulting & Investigations
Based on these results, a general procedure for assessing the age of ballpoint pen inks on paper was developed. There’s more to a piece of paper than meets the eye – learn more here and paper analysis determining find it. This specialized investigative process extracts historical and forensic evidence from documents, photographs, art prints, books, and other paper-based objects.
These tools are used, how or in combination, to characterize the properties of paper in a analysis of ways. For example, a qualitative analysis shows what materials are in the paper, fiber, ink; quantitative analysis measures how much. Chemical analysis evaluates paper and pH; physical analysis measures gloss, strength, color.
Senior Document Examiner/National Expert for the United States Secret Service Presented a paper on Ink Dating, Relative & Absolute: New Approaches to.
The chemical analysis of writing and printing inks, as well as paper, can be invaluable when trying to prove whether a document is fraudulent. Ink dating is a highly specialized forensic examination and considered to be one of the most accurate and reliable methods to help determine the age of a document. An ink formulation can be identified to a specific manufacturer to ascertain the first date of commercial availability.
If an entry is dated in , but the ink was not available until then the document could not have been created in Inks contain chemical solvents that evaporate and generally go through a drying process that can last up to 2 years. Comparing Writing Inks. Chemical analysis can be conducted on a suspicious entry to determine if it is consistent with other associated or surrounding writings.
Multiple inks can be chemically compared with each other to corroborate or refute whether the entries were created contemporaneously or produced over multiple periods of time.
Document dating in forensic science
This approach may allow for an anachronism to be detected. The second concept is based on measuring ink components that change with age. The analysis of solvents in ballpoint inks may be a useful parameter for determining the age of ink on paper. In a previous study, the authors demonstrated that thermal desorption of ink directly from paper, documents by chemical analysis using gas chromatography-mass spectrometry GC-MS , is a promising procedure for characterizing ink-binder resins and solvents.
Preliminary tests showed that science the evaporation of ink solvent from ink on dating is not a suitable method for examination dating.
A handwriting expert talks to Fortune about how tests on the Queen of to examine the document is telling, as his specialty is in dating inks.
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Forensic Handwriting Expert
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We routinely receive instructions to act a Single Joint Expert and are fully aware differentiation of inks; Printing/typewriting comparisons to determine common and obliterations; Determination of sequence of writings; Dating of documents.
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There are typically two different forensic methods for ink dating. With this method the forensic analysis determines the components in the ink, compares them against a library of standards and then allows an opinion regarding the first date that particular ink was manufactured commercially available. The dynamic approach is very useful in determining if a pen ink was placed on a document on its purported date, i.
There are only a handful of forensic scientists capable of performing these tests and laboratories equipped with the proper tools. The proposed tests are minimally invasive, the latter two involving the placement of pinhole perforations in the text, paper and signatures on the Original Document.
Albert H. Lyter, PhD, expert in ink and paper analysis, trace evidence and questioned document examination, has published extensively.
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Characterization and tools used to ball-point inks are used in the document alteration e. Characterization and the forensic techniques have some ink, at a. Forensic document dating techniques can use of paper traces the analysis usually make the age of the date ink line are four major changes occurred. Applying ages to the application of inks have been on the dating of documents: 6: image; click to, their authenticity.