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The purpose of biometrics technology
Advantages of biometrics
Advantages of biometrics
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Biometrics is the measurement and statistical analysis of people's physical and behavioral characteristics. The technology is mainly used for identification and access control, or for identifying individuals that are under surveillance. The basic premise of biometric authentication is that everyone is unique and an individual can be identified by his or her intrinsic physical or behavioral traits. (The term "biometrics" is derived from the Greek words "bio" meaning life and "metric" meaning to measure.)
There are two main types of biometric identifiers:
1. Physiological characteristics: The shape or composition of the body.
2. Behavioral characteristics: The behavior of a person.
Examples of physiological characteristics used for biometric authentication includes the followings :
Fingerprint identification : Fingerprints are unique patterns, made by friction ridges (raised) and furrows (recessed), which appear on the pads of the fingers and thumbs. Prints from palms, toes and feet are also unique; however, these are used less often for identification, so this guide focuses on prints from the fingers and thumbs. The two underlying premises of fingerprint identification are uniqueness and persistence (permanence). To date, no two people have ever been found to have the same fingerprints—including
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Because of the complex structure of the capillaries that supply the retina with blood, each person's retina is unique. The network of blood vessels in the retina is not entirely genetically determined and thus even identical twins do not share a similar pattern. A retina scan provides an analysis of the capillary blood vessels located in the back of the eye; the pattern remains the same throughout life. A scan uses a low-intensity light to take an image of the pattern formed by the blood vessels. Retina scans were first suggested in the
Deoxyribonucleic acid (DNA) is an acclaimed extraordinary discovery that has contributed great benefits in several fields throughout the world. DNA evidence is accounted for in the majority of cases presented in the criminal justice system. It is known as our very own unique genetic fingerprint; “a chromosome molecule which carries genetic coding unique to each person with the only exception of identical twins (that is why it is also called 'DNA fingerprinting ')” (Duhaime, n.d.). DNA is found in the nuclei of cells of nearly all living things.
In William Safire’s “The Threat of National ID”, he argues against a National ID card. Safire published an article in the New York Times to establish different context. Safire gives details about the use of National ID card at different places in different situations. He emphasizes that many Americans are willing to give up personal privacy in return for greater safety, but none of us have privacy regarding where we go and what we do all the time. Safire disputes that mandatory National ID become necessary for people to prevent fear of terror attack.
by the internal computers of the instrument, to create an image of internal body tissues. These images were then displayed on the screen for the user,
Do police officers really need body cameras is a question that has been repeated all throughout the nation. Body cameras are video recording systems that are used by law enforcement to record their interactions with the public and gather video evidence. Most police departments do not wear body cameras currently and the ones that do are in trial phases to see how it works out. There are many advantages to police officers wearing body cameras but in asking the question should they wear body cameras the stakeholders should look at the complete picture. One reason that police and body cameras have constantly been brought up lately are the instances of police brutality happening within the United States. Police brutality within the United States
Now-a-day, biometric authentication system or simply biometric system, offers a reliable and user-friendly solution to the problem of identity management by establishing the identity of an individual based on “who the person is”, rather than the knowledge-based i.e. “what the person knows" or token-based i.e. “what the person carries” (Jain et al., 1999). The word biometrics is derived from the Greek words bios (meaning life) and metron (meaning measurement); biometric identifiers are measurements from living human body (Maltoni et al., 2003). Biometric system refers to automatically identify or verify an individual's identity based on his physiological characteristics (e.g. fingerprints, face, iris and hand geometry) and behavioral characteristics (e.g. gait, voice and signature) (Figure 2.1). Ancillary characteristics (also known as soft biometric) such as gender, ethnicity, age, eye color, skin color, scars and tatoos also provide some information about the identity of a person. However, soft biometric traits do not provide sufficient evidence to precisely determine the identity (Jain et al., 2004a). Biometric traits provide a unique and permanent binding between an individual and his identity. This “binding" cannot be easily lost, forgotten, shared or forged and free from making false repudiation claims. Biometrics offers several advantages over conventional security measures. These include
Having the ability to identify types of prints and surfaces, and the corresponding techniques to develop the prints, has helped crime scene investigators identify criminals and victims of scenes, and aided in the prosecution of defendants in the criminal justice system. Although the history and techniques go far beyond what was discussed in these few pages, it is important as a law enforcement officer or investigator to understand the very basics of how fingerprint identification began, and the simple techniques used to develop them today.
It is easy to think of biometrics as the future science technology are always happened in some fictions, associated with solar car and clones together. In fact, it has long history that people understood the basic principle and application of the biometric. Thousands of years ago, the people of the Nile basin used the biometric in everyday transactions (such as scarring, skin tone, eye color, height, etc.) for identification. Of course, they had no any automatic electronic identification system, or computer network, but the principle is similar.
The two extraordinary things about fingerprints are there uniqueness and permanence. Since fingerprints where first discovered till now there have been no known cases of two people sharing the same prints, including identical twins. Fingerprint patterns are developed very early on in foetal life, usually between 6 and 13 weeks, and are created when the baby moves around in the womb, due to the force of the amniotic fluid against the fingertips and the speed at which the foetus grows it creates the distinct patterns that are known as fingerprints which stay the same from birth until death. (SMITHSONIAN, 2012)
One of the most common methods for discovering and collecting latent fingerprints is by dusting a smooth or nonporous surface with fingerprint powder (black granular, aluminum flake, black magnetic, etc.). If any prints appear, they are photographed as mentioned above and then lifted from the surface with clear adhesive tape. The lifting tape is then placed on a latent lift card to preserve the print.
Law enforcement uses several methods to solve all types of crimes. Having a variety of ways to help solve an investigation gives officials an advantage. If one method fails or isn’t helpful, there are several others they can rely on. For instance, if there are no physical witnesses to a crime, the criminal may have left a fingerprint at the crime scene. An individual’s fingerprint is unique, “no two persons have exactly the same arrangement of ridge patterns” (“Fingerprint ID”). Fingerprints of criminals and of civilians are collected and stored. Also, “People who apply for government jobs, jobs that handle confidential information, banking jobs, teaching jobs, law enforcement jobs, and any job that involves security issues can be fingerprinted” (“The First ID”). Fingerprints are processed within hours and minutes through the Integrated Automated Fingerprint ID System. This system was developed in 1991, and made it easier for different law enforcement agencies to store and share fingerprints.
By combining the Greek words “bio”, which stands for “life”, and “metrics”, which stands for “measure”, you produce the term “biometrics” or “life measurements”. To understand biometrics at the most basic level, all one has to do is to picture a loved one in their mind. A human can specifically recognize another human by remembering an eye color, a hair color, a nose shape, a wart, or any combination of facial features. While the human mind is capable of remembering the physical characteristics of several humans, it is impossible to retain, reference, and sort thousands of biometric data which may contain details down to the molecular level. Today, this has been made easier by computer technology.
“Crime scene processing is a critical component in the resolution of crimes against persons and property, to include homicide, sexual assault, aggravated assault, robbery, and drug use” (Hunkeler, I). When searching the term fingerprints on Merriam-Webster, one finds numerous definitions for the term and learns that there are various types of fingerprinting. One classification reads that fingerprints are “an ink impression of the lines upon the fingertip taken for the purpose of identification” (Merriam-Webster). Another definition explains that fingerprints are “the base-pair pattern in an individual's DNA obtained by DNA fingerprinting” (Merriam-Webster). Both of these definitions provide a worthy understanding of fingerprinting, especially dealing with the crime scene aspect. Although it may seem that it is a fairly simple concept to understand, it is complex and takes time to learn and understand the different types and ways to gather and collect fingerprints.
“Do not judge the book by its cover”. This is a very famous quote. But is really personal appearance not essential? (Elmer, n.d.).
To the so innovative method of identifying criminals there also came problems. Data, who was to know that each police clerk would give correct measurements of the person or even perform the measurements. Even though there was faultiness to the method “bertillionage” (Bertillon's Method) remained as the primary method of identification for over twenty years, where Bertillon then Fathered the Mug Shot by including a picture to each identification card. Soon after Fingerprints were being included to identification cards, where soon after DNA was beginning to be used and placed into Law Enforcement database. Even though throughout the years there have been many innovations towards personal identification we still had not come across a method of identifying a criminal in all areas until we came across Next Generation identification and in more detail Iris
Images of human anatomy have been around for more than 500 years now. From the sketches created by Leonardo da Vinci, to the modern day Computed Tomography (CT) or Magnetic Resonance Imaging (MRI) scan, images have played a great role in medicine. Evolution in medical imaging brought together people from various disciplines such as Biology, Physics, Chemistry and Mathematics, a collaboration which has further contributed to healthcare as a whole. Modern day imaging improves medical workflows by facilitating a non-invasive insight into human body, accurate and timely diagnostics, and persistence of an analysis.