A signature analysis is the most common type of request a document examiner receives. It is understandable, considering the numerous contractual agreements, wills, checks, and other documents signed on a daily basis. If you have a court case, a workplace issue, or a personal reason to have a signature verification, I would welcome your call to discuss the matter. Procedures are consistent for a document examiner, regardless of the document type or assets at issue. Original documents are preferable to work with, particularly the one s at issue. If it is not available, the best copy should be submitted. As you may suspect, several known signatures are needed for the signature analysis process. Consider your own signatures; they vary in their appearance from one signature to another. Some writers have a narrow range of variation with their signatures appearing very similar from one to another. Other writers have a wide degree of variation and the rest of us fall somewhere in the middle.
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Wills, endorsements on checks, letters, credit card applications or sales invoices, bank documents and even scribbled notations are just a few of the types of documents in which the identification of the author of the writing thereon may prove to be of value. Forensic document examination, questioned documents, handwriting questions, handwriting identification and questions regarding fraud or forgery are addressed.
On many occasions it is possible for the document examiner to state with no reservations that a particular individual did or did not write a specific written entry. On other occasions, because of the limited or general nature of the questioned writing, the lack of a sufficient amount of known specimen writing, disguise in the questioned or known writing, or other reasons, it may not be possible to state the results with complete certitude but a qualified opinion may be expressed.
Depending on the weight of other evidence in the case, these qualified opinions may still be of value in subsequent decisions or prosecutions. The following is offered as the types of opinions that may be expressed by document examiners in handwriting cases, which for the purpose of this discussion, include handprinting cases:.
Forensic document services are provided by Ms. Seaman-Kelly in Utah. of alterations to a document, identifying printing processes, ascertaining the date of a document Call to discuss the examination needs of your case.
Signature Analysis & Comparisons
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IMPORTANT CASE STUDIES OF QUESTIONED DOCUMENTS. The researcher has the Supreme Court of India and some of the International Cases. of shares were moved in the back date by Mr. K S Sidhu the Managing Director of the.
Seaman Kelly has 30 years of experience in examining a variety of documents in both criminal and civil cases. Retired from law enforcement in , Ms. She is a current member of the Forensic Document Examination sub-committee of the Organization of Scientific Areas Committees OSAC , which drafts professional standards for the various tasks in forensic document examination, and the Academy Standards Board which is a multi-forensic science board that reviews and approves standards submitted by the individual forensic science discipline for publication.
Seaman Kelly has qualified as an expert and has testified in federal, state and administrative courts in Nevada and Oklahoma. She is a noted author and a frequent speaker on topics related to forensic document examination. She also serves as a consultant and provides training to other document examiners. Forensic document services are provided by Ms. Seaman-Kelly in Utah. Examination of disputed handwriting and signatures, detection of alterations to a document, identifying printing processes, ascertaining the date of a document through non-destructive testing, fracture matching of torn or shredded documents, and, the recovery of indented or obliterated text are a few of the examination services performed by Ms.
Ms. Linda L Mitchell
Wills, endorsements on checks, letters, credit card applications or sales invoices, bank documents and even scribbled notations are just a few of the types of documents in which the identification of the author of the writing thereon may prove to be of value. Forensic document examination, questioned documents, handwriting questions, handwriting identification and questions regarding fraud or forgery are addressed. On many occasions it is possible for the document examiner to state with no reservations that a particular individual did or did not write a specific written entry.
On other occasions, because of the limited or general nature of the questioned writing, the lack of a sufficient amount of known specimen writing, disguise in the questioned or known writing, or other reasons, it may not be possible to state the results with complete certitude but a qualified opinion may be expressed.
Document Examination Forensic Experts Serving Maryland in forensic document examinations, testimony in civil and criminal cases, Offices: San Luis Obispo, CA-GFS is a private forensic lab, specializing in ink dating, forensic ink dating.
Comparative analysis of a particular document against other documents from the same source and the same period may be of assistance in determining the relative date of documents or may identify a particular time frame in which a particular organisation used a particular paper type, printer, fax machine etc. There are various libraries of information available concerning when papers were produced but these rely very heavily on the presence of a watermark in the paper.
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. The types of pen, printers etc may be significant in assessing the date of a document and as with many of the dating techniques, the evidence is often more valuable or significant when an anachronism is established as opposed to compliance with other materials, papers etc which may have been available for a prolonged period of time.
Other aspects of documents relating to defects in features such on printed or typewritten document, the presence of trash marks or incidental marks on photocopies or laser prints etc may also yield valuable information concerning the dating of the document. Handwriting and signatures may change with time and if reasonable volumes of comparison documentation over a period of time from the same individual can be obtained, the quality of writing or writing style may be identifiable to a particular time period.
The relative dating of documents or entries on documents can also be undertaken utilising such techniques as ESDA or by examination of offset ink transfers caused by writing a document resting on top of a “wet” transferable ink. Home Dating of Documents. Dating of Documents Comparative analysis of a particular document against other documents from the same source and the same period may be of assistance in determining the relative date of documents or may identify a particular time frame in which a particular organisation used a particular paper type, printer, fax machine etc.
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What is a Forensic Document Examiner
He is an active member of several professional organizations including the American Society of Questioned Document Examiners www. No case is too large or small. If you would like to discuss your case with us at no charge please feel free contact us at or DREXlab —
Forensic document examiners are an essential part of the success of the forensic This means they testify in court proceedings if the case goes to trial. to determine authorship of handwritten entries or dating questions concerning when an.
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.
Guilt, Innocence, Faith, Forensic Science, and the Lincoln Forgeries
Emily J. Forensic Document Examiner. Albuquerque, NM. Questions about the legitimacy of documents are probably as old as documents themselves. Here are some interesting cases in questioned document history, followed by a bibliography for interested readers. In a Mr.
We employ three document examiners, one fingerprint examiner, a forensic ink dating chemist, a DNA consultant, a trace evidence and impression evidence.
In this article, Forensic Document Examiner, Mark Songer provides an overview of the cases where forensic document examination can be applied, the techniques and technologies used, and standards that exist in the field. In , an intruder broke into the home of an elderly couple living in California. The couple was robbed, beaten, and forced to write checks from their personal account before being murdered.
The suspect denied having anything to do with the murders. He claimed the checks were payment for landscaping work he had done for the couple two weeks earlier. While detectives were able to link the suspect to the crime scene using DNA evidence, they still had questions about the checks the suspect attempted to cash.
Could one of the victims have written the checks? If so, was it possible to discern if the writer was under duress at the time? Police contacted a forensic document examiner, also referred to as a handwriting expert. Those checks were compared with checks the suspect had attempted to cash. The examiner determined that the wife had written those questioned checks.
Forensic document dating cases Sex chat conversation example
Please contact mpub-help umich. For more information, read Michigan Publishing’s access and usage policy. Mark Twain once wrote that travel makes a man wiser but sadder. He was, of course, speaking about geographical travel, although I’ve discovered that the same thing could be said about some intellectual voyages. At least that’s what I have learned from my itinerary through the world of forgery of rare historical and literary material and forensic science.
Contractual agreements, wills, checks, and other documents are signed on daily A document examiner will normally refer ink dating cases to an ink chemist.
Enter your mobile number or email address below and we’ll send you a link to download the free Kindle App. Then you can start reading Kindle books on your smartphone, tablet, or computer – no Kindle device required. To get the free app, enter your mobile phone number. During his career, Brunelle published approximately 50 scientific publications, including a textbook on the Forensic Examination of Ink and Paper, a chapter in a Handbook of Forensic Sciences, and a chapter in an Encyclopedia of Forensic Sciences.
He was the recipient of the John A. Dondero Memorial Award, presented to him by the International Association for Identification for developing the first capability in the United States for dating inks. This was the first professional association in the world for forensic ink chemists. Kenneth R. If you are a seller for this product, would you like to suggest updates through seller support? The use of the forensic examination and dating of inks on questioned documents has become common, and law enforcement agencies rely heavily on these techniques during criminal investigations whenever there is some question as to when a document was written.
In this book, the authors describe the many advances that have occurred in the field of forensic examination and dating of inks on documents. Actual laboratory procedures for examining and dating inks and other related substances are described, as well as the forensic applications of these techniques in criminal and civil litigations.
Dating of Documents
The expert witnesses in this section are available to give advice on Forensic Document Examination. They may consult on forgeries, paper comparisons, altered documents, and writing impressions. These experts can also provide reports on signature verification, writer identification, anonymous writings, and paper comparisons. They can provide testimonies on age and date determination, ink chemistry, document analyses, interlineations, and page substitutions.
These professionals can also help verify contract authenticity, test original documents, and analyze wills, checks, and contracts.
Journal: International Journal of Forensic Document Examiners Volume:5 the optimized selection of extracting solvents for dating ball-point ink on questioned documents. Some of the case studies involve the following types of document.
Whether such tags occur in ballpoint pens available generally in Australia is not known. It is possible to determine, as an estimate, the relative age of inks of the same formula when they have been written on the same type of paper and held under the same storage conditions. This method can be useful only when the inks are still drying up to six years but more likely one to two years as solubility changes cease once ink has completely dried.
Additionally, as resins in inks harden, which begins on deposit, their solubility diminishes and importantly they trap colourants. The laboratory has two document examiners who primarily undertake privately funded casework. Reports are prepared for a variety of courts, both Civil and Criminal in the UK and abroad. Our Practice is the longest established private independent laboratory in Great Britain dealing with the examination of questioned documents.
For more than five decades, the laboratory has had an international reputation and regularly receives instructions from all over the world. However, this type of analysis is relevant only to very old documents. We also assess reports of other experts, commenting, supplementing and, if necessary, criticising the same so that instructing clients can fully appreciate the significance of the evidence presented.
FDS also undertakes non-invasive forensic examinations of papers as well as writing and printing inks.
During his career, Brunelle published approximately 50 scientific publications, including a textbook on the Forensic Examination of Ink and Paper, a chapter in a Handbook of Forensic Sciences, and a chapter in an Encyclopedia of Forensic Sciences. He was the recipient of the John A. Dondero Memorial Award, presented to him by the International Association for Identification for developing the first capability in the United States for dating inks.
This was the first professional association in the world for forensic ink chemists.
Aginsky Forensic Document Dating Laboratory is an international forensic firm criminal cases involving disputed documents, such as: Altered (or counterfeit).
Apart from the microscopic examination and the use of optical methods to examine various items exhibits that may reveal evidence about the document source or whether or not a nexus exits between various documents, there may be a need to chemically analyse the materials used in the document production. This may involve analysis of the substrate paper, film, etc. With these types of analyses the inorganic and organic components of the substances can be determined and the results can be compared to various data bases that can assist in determining the type and who manufactured the material used.
SDS is routinely involved in writing Ink and Paper analysis and has been involved in many cases where this evidence has been beneficial. Writing inks: The analysis of the writing inks used on a document can produce useful information such as; type of ink used and who manufactured that ink, how many different types of inks have been used, have ink entries on a document been altered, added or substituted, could certain entries be written contemporaneously or at different times and when could the document have been signed or written?
Non destructive techniques are used in the first instance and involve microscopic, variable wavelength light source illumination techniques Polilight etc. The use of different wavelengths of the electromagnetic spectrum provides an examiner with a large number of different techniques to determine the optical properties and some of these techniques are used routinely to reveal, faded, erased and obliterated entries pencil and ink or used to examine damaged documents which have been burnt, water or solvent affected or even digested!
In situations where the inks have similar optical properties, and appear indistinguishable there will be a need to resort to further non destructive analysis microspectrophotometry etc. SDS has access to a Writing Ink Library of over writing ink samples and this library can be used to identify the manufacturer of the ink and provide information concerning the use of this ink by various writing ink manufacturers.
Paper examination and analysis: A complete analysis of the substrate used to produce a document can be important aspect of an investigation into Extortion, Kidnapping, Terrorism, Counterfeiting and Product Tampering and Copyright issues. Also this type of analysis can be used in paper document dating cases where changes in paper furnish formulation may determine whether or not a document could have been in existence at a particular time.
Also the change in acid sizing to alkaline sizing at the various mills can be used for this purpose.