He is, perhaps, the greatest artist of all time, a talent so unique, even his notebooks are worth tens of millions of dollars: Leonardo da Vinci, the genius who painted the Mona Lisa, whose rare finished works are among the treasures of the western world. So imagine getting your hands on a previously unknown portrait by Leonardo, a work like this, a profile of a mysterious young woman. If it really is a Leonardo, it could be worth a hundred million dollars. I don"t have any doubt that it is by Leonardo da Vinci. This drawing does not seem to have any chance of being by Leonardo. Now, independent investigators will try to determine whether this portrait is real or fake, the work of some unknown artist of the past or a true Leonardo. They"ll search for clues, probing deep beneath the layers of pigment, recreating the composition with original materials, and even digging into the mysteries surrounding the young woman and the creation of her portrait.
The"dark triad" of three personality traits: Sometimes called"dark personality. Psychopathy is a psychological condition in which the individual shows a profound lack of empathy for the feelings of others, a willingness to engage in immoral and antisocial behavior for short-term gains, and extreme egocentricity. Psychopaths do not have the fear response experienced by most of us to the potential negative consequences of criminal or risky behavior and are relatively insensitive to punishment.
A fingerprint in its narrow sense is an impression left by the friction ridges of a human finger. The recovery of fingerprints from a crime scene is an important method of forensic prints are easily deposited on suitable surfaces (such as glass or metal or polished stone) by the natural secretions of sweat from the eccrine glands that are present in epidermal ridges.
There are different types of fingerprint readers on the market, but the basic idea behind each is to measure the physical difference between ridges and valleys. All the proposed methods can be grouped into two major families: The procedure for capturing a fingerprint using a sensor consists of rolling or touching with the finger onto a sensing area, which according to the physical principle in use optical, ultrasonic, capacitive or thermal captures the difference between valleys and ridges.
When a finger touches or rolls onto a surface, the elastic skin deforms. The quantity and direction of the pressure applied by the user, the skin conditions and the projection of an irregular 3D object the finger onto a 2D flat plane introduce distortions, noise and inconsistencies in the captured fingerprint image.
These problems result in inconsistent and non-uniform irregularities in the image. The representation of the same fingerprint changes every time the finger is placed on the sensor plate, increasing the complexity of any attempt to match fingerprints, impairing the system performance and consequently, limiting the widespread use of this biometric technology. In order to overcome these problems, as of , non-contact or touchless 3D fingerprint scanners have been developed.
By modelling the distance between neighboring points, the fingerprint can be imaged at a resolution high enough to record all the necessary detail. However, a MythBusters episode revealed that this doesn"t work at least with the scanners available to the program. But Adam Savage and Jamie Hyneman found a way to convert fingerprints lifted from the hand to a photographic form that the sensor would accept. For obvious reasons, they refuse to reveal the technique.
Latent detection Use of fine powder and brush to reveal latent fingerprints Fingerprints dusting of a burglary scene In the s criminal investigators in the United States first discovered the existence of latent fingerprints on the surfaces of fabrics, most notably on the insides of gloves discarded by perpetrators.
Paper & Ink Examination
Picasso ceramic, authentic or fake? The values that some of his artworks fetch don"t even bear thinking about and with such a huge volume of fakes out there, you just can"t be sure if your Picasso is real or a fake. Pablo Picasso"s biographer John Richardson, whom we acknowledge for this quote and from which this passage is taken, wrote of him: He Picasso moved to a small house hidden away on the outskirts of Vallauris, a town a few miles inland from Cannes.
Link forensic ink dating then cross-checked with a database of all known the number of supernotes multiplied, the. Free searchable directory of ink dating expert witnesses, forensic experts and litigation support services to lawyers and law expert witnesses.
History of Technology Heroes and Villains - A little light reading Here you will find a brief history of technology. Initially inspired by the development of batteries, it covers technology in general and includes some interesting little known, or long forgotten, facts as well as a few myths about the development of technology, the science behind it, the context in which it occurred and the deeds of the many personalities, eccentrics and charlatans involved.
You may find the Search Engine , the Technology Timeline or the Hall of Fame quicker if you are looking for something or somebody in particular. Scroll down and see what treasures you can discover. Background We think of a battery today as a source of portable power, but it is no exaggeration to say that the battery is one of the most important inventions in the history of mankind. Volta"s pile was at first a technical curiosity but this new electrochemical phenomenon very quickly opened the door to new branches of both physics and chemistry and a myriad of discoveries, inventions and applications.
The electronics, computers and communications industries, power engineering and much of the chemical industry of today were founded on discoveries made possible by the battery. Pioneers It is often overlooked that throughout the nineteenth century, most of the electrical experimenters, inventors and engineers who made these advances possible had to make their own batteries before they could start their investigations. They did not have the benefit of cheap, off the shelf, mass produced batteries.
For many years the telegraph, and later the telephone, industries were the only consumers of batteries in modest volumes and it wasn"t until the twentieth century that new applications created the demand that made the battery a commodity item.
We offer over 37 years of experience and training in a wide range of forensic science and private investigation disciplines. We specialize in ink dating, handwriting, art dating, questioned document examinations, fraud detection and forensic analysis. Stewart was born in Asheville, North Carolina.
Crane Currency is a fully integrated banknote designer, printer, paper maker and security feature developer, servicing the international banknote community for over years.
A report submitted to the U. Chicago Tribune - Todd Richmond - February 10, Now, a team of researchers at the National Institute of Standards and Technology NIST has developed a statistical approach for ballistic comparisons that may enable numerical testimony. A coroner can be notified within 10 minutes and have to wait for hours on end to take possession of the body.
The FBI standards are considered to be adequate by her to prevent and catch contamination and human error. Here are four other cutting-edge technologies being used and developed by companies nationwide to nab perps through a microscope. When I started in forensic science, you needed a blood stain the size of a 50p piece. Cuts to forensic science work are increasing the risk of miscarriages of justice, an official watchdog has warned.
This equipment will aid the Crime Scene Unit in locating and gathering evidence. Henry Herald - January 15, Police: Chicago Sun-Times - January 12, Ted Kaczynski carried out a string of bombings over a period of almost 17 years — until forensic linguistics led to his arrest in
That is, it is an archive of cases where forensic science and law enforcement experts have provided sworn testimony, documents, or reports intended for the court that contain deceptive or misleading information, findings, opinions, or conclusions. Such information, findings, or conclusions have been deliberately offered by the expert in order to secure an unfair or unlawful gain as determined by their employers, by the courts, and in many cases by their own admission.
Subsequently, no opinions have been added to the referenced sources.
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A cloud of explosive chemicals is released, and upon impact the fuel-air mixture is detonated, exploding the lungs of animals and human beings in the vicinity, not damaging structures much but filling the lungs of all animals with fuel and burning them in what may be one of the most horrifying ways imaginable to die. Premature baby was decapitated"when top NHS doc detached body from head during botched birth" A premature baby was decapitated inside his mom"s womb when a doctor in Scotland detached his body from his head during a botched birth, a tribunal heard.
The hearing was told the first-time mom was then forced to undergo a C-section to remove the head — which was sewn onto the tot"s body so she could hold him and say goodbye. Inside Job or Mossad Job? Is the Israel-Iran Conflict a Charade? To understand current events, we need a new paradigm. The paradigm fostered by the mass media of a"balanced" world consisting of competing interests, nations, ideologies and religions only traps us in a false matrix of"good guys vs.
This clique is empowered by a cartel of cartels, beginning with world central banking, based in London.
Previous reports on those who obtain tattoos, piercings, and scarification have focused mainly on high-risk populations, including at-risk adolescents. Although body modifications have become a mainstream trend, they still may be associated with medical complications and, among adolescents, may also co-occur with high-risk behaviors.
This first clinical report from the American Academy of Pediatrics on tattooing, piercing, and scarification discusses the history of these methods of body modification, educates the reader on methods used, reports on trends in associated adolescent and young adult risk behaviors, differentiates between nonsuicidal self-injury NSSI and body modifications, and educates the reader about how to anticipate and prevent potential medical complications.
Evidence Collection and Laboratory Analysis. GENERAL EVIDENCE COLLECTION GUIDELINES. Before evidence is collected: Make sure there are no suspected devices that have not functioned, firearms, needles, drug paraphernalia, or blood or other body fluids from .
An advocate for the representation of women and people in colour in STEM fields and for transformation of academic spaces and curricula. His company company inspires and teaches leadership to entrepreneurs. Sbusiso also supports various charity organisations and he strives to give back to communities. Some of his humanitarian efforts include food and clothing distributions in many disadvantaged communities, Hospice visitations, and much more.
Muimeleli Mutangwa Tailor Klinik Muimeleli is a national best selling author Before Varsity and founder of Ink Matter, a publishing company focused primarily on publishing the work of emerging authors. Her business organises youth development projects and events for the private sector.
Evidence Collection, Accelerants
Scientific method A typical 19th century phrenology chart: During the s, phrenologists claimed the mind was located in areas of the brain, and were attacked for doubting that mind came from the nonmaterial soul. Their idea of reading"bumps" in the skull to predict personality traits was later discredited. Experimental results should be reproducible and verified by other researchers. Standards require the scientific method to be applied throughout, and bias to be controlled for or eliminated through randomization , fair sampling procedures, blinding of studies, and other methods.
All gathered data, including the experimental or environmental conditions, are expected to be documented for scrutiny and made available for peer review , allowing further experiments or studies to be conducted to confirm or falsify results.
InvestorWords - The Most Comprehensive Investing Glossary on the Web! Over financial and investing definitions, with links between related terms.
Yes, forensic document examiners are handwriting experts, but forensic document examiners do not usually use the term handwriting expert to refer to themselves. The courts and attorneys commonly use the term handwriting expert; however, most forensic document examiners believe the term handwriting expert is too limiting. Forensic document examiners perform a much wider range examinations than handwriting examination, comparison, and identification. It is true that handwriting examination is the bulk of the work performed by most forensic document examiners.
Forensic document examiners examine handwriting and signatures to identify and eliminate potential writers and detect forgery. They also testify about handwriting examinations as an expert witness in court, but qualified forensic document examiners are also experts in the examination of typewritten and computer-generated documents, counterfeit documents, alterations and obliterations on documents, and to detect and decipher indented handwriting impressions.
Forensic document examiners also conduct examinations of documents created by photocopiers and fax machines, examine ink and paper, as well as the examinations of documents to determine if handwriting or other entries on documents were made contemporaneously. By the way, forensic document examiners might also be called questioned document examiners, forensic handwriting analysts, and forensic document analysts. Some may use the terms document experts, handwriting authentication specialists, signature experts, handwriting identification experts, and forgery experts.
History[ edit ] The last remnant of old ownership marks The Vinland map first came to light in three years before the discovery of the Norse site at L"Anse aux Meadows in , bound in a slim volume with a short medieval text called the Hystoria Tartarorum usually called in English The Tartar Relation , and was unsuccessfully offered to the British Museum by London book dealer Irving Davis on behalf of a Spanish-Italian dealer named Enzo Ferrajoli de Ry.
Witten II , who offered it to his alma mater, Yale University. It was initially treated with suspicion, partly because wormholes in the map and the Relation did not match. In spring , however, Witten"s friend Thomas Marston, a Yale librarian, acquired from London book dealer Irving Davis a dilapidated medieval copy of books of Vincent of Beauvais"s encyclopedic Speculum historiale"Historical Mirror" , written in two columns on a mix of parchment and paper sheets, with initial capitals left blank, which turned out to be the missing link; the wormholes showing that it had formerly had the map at its beginning and the Relation at its end.
All traces of former ownership marks, except for a small part of a bright pink stamp which overlapped the writing on folio of the Speculum, had been removed, perhaps to avoid tax liability for the former owner although as historian Kirsten Seaver noted many years later, stamps on random book pages indicate institutional, not private ownership.
Abstract. The challenges faced by the forensic document examiner are to know whether entries/writings with ink made on certain documents – such as logbooks, registers, OMR sheets, cheques, drafts, promising letter/notes, deeds, wills, prescription notes, and other important documents – are executed during the same period of time, or in different periods of time, and to know whether entries.
Pages About Us We appreciate the following growing list of leading industry suppliers who have committed to support this conference — and thus this industry — with their invaluable participation. Please click on a logo below to see a company description. Arjowiggins Security is a recognised expert in the currency industry, with more than two centuries of experience in designing and manufacturing banknote paper.
Our mission is to enable central banks to maintain public confidence in their currency. We strive to offer to central banks state-of-the-art paper that will meet their needs with the highest standards of security, quality and durability. Technological innovation is a priority for us. The expertise of a dedicated research center and the know-how of our papermakers allow us to propose a wide range of products, from high durability substrates and innovative watermarked papers to security features such as threads that integrate the latest technologies in optics and security.
Arjowiggins Security is the trusted partner of over countries. For more information, please visit our website: Adherence to the highest standards of ethics and operational integrity has been instrumental in the building of long-term business relationships. For more information, please visit:
Handwriting analysis expert, forensic art dating, questioned documents, ink
John Constable Portrait, seascape, landscape, pen and ink wash marine study ,and floral studies The Freemanart Consultancy with bases in Britain and across Europe and North America, are art authentication experts who specialise in art authentication investigations and its related procedures. We conduct detailed forensic art analysis alongside in depth academic investigations and research and have art experts, forensic art analysts and scholars on hand who specifically specialise in particular in the artwork and paintings of the artist John Constable.
We are specifically here to assist you with both financial valuations of legitimate Constable works of art and advise on the all so important issues of John Constable authentication and attribution issues and at all levels, undertaking our investigative work completely confidentially and swiftly across the world.
With physical access to Constable records and documents distributed in archive across Britain and Europe, we are perfectly sited geographically to assist you. Preliminary authentication assessments of previously attributed John Constable paintings or paintings bearing the famous Constable signature, right at the start of an art authenticity investigation can save great personal heartache and unnecessary expense in the long term.
List of works of art in recent years successfully attributed to John Constable is few and far between.
In fact, the dating of documents is a key area in the field of forensic science. A new method that determines the age of a document in a less invasive way than other techniques and is also able to.
He is an internationally acknowledged authority on terrorism, travel security, crises management and related issues. He has developed internationally award-winning training courses on a variety of security topics. In addition, he has written an authoritative textbook on crises management and a highly acclaimed book on hostage-taking, and regularly consults to clients of all types around the world. He is a former career foreign service officer and trained hostage negotiator.
A variety of services are available. Each bi-monthly issue features the latest"how-to" articles on a variety of topics beneficial to all investigators. Other regular features include: Readers have even found the advertisements to be as important as the articles themselves. Previous owner, Jimmie Mesis, will continue as an Associate Editor. The magazine"s Editor is Grace Castle, CLI; a respected investigator and author of several investigative books and articles.
With over 25, readers in 30 countries, PI Magazine has truly become a publication all professional investigators can be proud of.