Forensics in the context of "Genetic analysis"

Play Trivia Questions online!

or

Skip to study material about Forensics in the context of "Genetic analysis"




⭐ Core Definition: Forensics

Forensic science, often confused with criminalistics, is the application of science principles and methods to support decision-making related to rules or law, generally specifically criminal and civil law.

During criminal investigation in particular, it is governed by the legal standards of admissible evidence and criminal procedure. It is a broad field utilizing numerous practices such as the analysis of DNA, fingerprints, bloodstain patterns, firearms, ballistics, toxicology, microscopy, and fire debris analysis.

↓ Menu

In this Dossier

Forensics in the context of Target Corporation

Target Corporation, doing business as Target, is an American retail corporation headquartered in Minneapolis, Minnesota. Target operates retail stores. It is the seventh-largest retailer in the United States and is a component of the S&P 500 Index.

The original Target retail store was co-founded by John Geisse and Douglas Dayton in 1962 for Dayton's in Roseville, Minnesota. Dayton's was renamed the Target Corporation in 2000. Target is notable for its focus on upscale, trend-forward merchandise at lower costs. Its stores typically sell general merchandise. Target's logo refers to the center of a shooting target, and its canine mascot is named Bullseye. The corporation also operates two criminal forensics laboratories.

↑ Return to Menu

Forensics in the context of Blacklight

A blacklight, also called a UV-A light, Wood's lamp, or ultraviolet light, is a lamp that emits long-wave (UV-A) ultraviolet light and very little visible light. One type of lamp has a violet filter material, either on the bulb or in a separate glass filter in the lamp housing, which blocks most visible light and allows through UV, so the lamp has a dim violet glow when operating. Blacklight lamps which have this filter have a lighting industry designation that includes the letters "BLB". This stands for "blacklight blue". A second type of lamp produces ultraviolet but does not have the filter material, so it produces more visible light and has a blue color when operating. These tubes are made for use in "bug zapper" insect traps, and are identified by the industry designation "BL". This stands for "blacklight".

Blacklight sources may be specially designed fluorescent lamps, mercury-vapor lamps, light-emitting diodes (LEDs), lasers, or incandescent lamps. In medicine, forensics, and some other scientific fields, such a light source is referred to as a Wood's lamp, named after Robert Williams Wood, who invented the original Wood's glass UV filters.

↑ Return to Menu

Forensics in the context of Direct evidence

In law, a body of facts that directly supports the truth of an assertion without intervening inference. It is often exemplified by eyewitness testimony, which consists of a witness's description of their reputed direct sensory experience of an alleged act without the presentation of additional facts. By contrast, circumstantial evidence can help prove via inference whether an assertion is true, such as forensics presented by an expert witness.

In a criminal case, an eyewitness provides direct evidence of the actus reus if they testify that they witnessed the actual performance of the criminal event under question. Other testimony, such as the witness description of a chase leading up to an act of violence or a so-called smoking gun is considered circumstantial.

↑ Return to Menu

Forensics in the context of Allele-specific oligonucleotide

An anti-sense oligonucleotide (ASO) is a short piece of synthetic DNA complementary to the sequence of a variable target DNA. It acts as a probe for the presence of the target in a Southern blot assay or, more commonly, in the simpler dot blot assay. It is a common tool used in genetic testing, forensics, and molecular biology research.

An ASO is typically an oligonucleotide of 15–21 nucleotide bases in length. It is designed (and used) in a way that makes it specific for only one version, or allele, of the DNA being tested. The length of the ASO, which strand it is chosen from, and the conditions by which it is bound to (and washed from) the target DNA all play a role in its specificity. These probes can usually be designed to detect a difference of as little as 1 base in the target's genetic sequence, a basic ability in the assay of single-nucleotide polymorphisms (SNPs), important in genotype analysis and the Human Genome Project. To be detected after it has bound to its target, the ASO must be labeled with a radioactive, enzymatic, or fluorescent tag. The Illumina Methylation Assay technology takes advantage of ASO to detect one base pair difference (cytosine versus thymine) to measure methylation at a specific CpG site.

↑ Return to Menu

Forensics in the context of Naval Criminal Investigative Service

The United States Naval Criminal Investigative Service (NCIS) is the primary investigative law enforcement agency of the United States Department of the Navy. Its primary function is to investigate major criminal activities involving the Navy and Marine Corps. However, its broad mandate includes national security, counterintelligence, counterterrorism, cyberwarfare, and the protection of U.S. naval assets worldwide. NCIS is the successor organization to the former Naval Investigative Service (NIS), which was established by the Office of Naval Intelligence after World War II. One-half of NCIS personnel are civilian, with the other half being US government investigators — 1811 series special agents. NCIS agents are armed federal law enforcement investigators, who frequently coordinate with other U.S. government agencies and have a presence in more than 41 countries and on U.S. Navy vessels. NCIS special agents are supported by analysts and other experts skilled in disciplines such as forensics, surveillance, surveillance countermeasures, computer investigations, physical security, and polygraph examinations.

↑ Return to Menu

Forensics in the context of Forensic engineering

Forensic engineering has been defined as "the investigation of failures—ranging from serviceability to catastrophic—which may lead to legal activity, including both civil and criminal". The forensic engineering field is very broad in terms of the many disciplines that it covers, investigations that use forensic engineering are case of environmental damages to structures, system failures of machines, explosions, electrical, fire point of origin, vehicle failures and many more.

It includes the investigation of materials, products, structures or components that fail or do not operate or function as intended, causing personal injury, damage to property or economic loss. The consequences of failure may give rise to action under either criminal or civil law including but not limited to health and safety legislation, the laws of contract and/or product liability and the laws of tort. The field also deals with retracing processes and procedures leading to accidents in operation of vehicles or machinery. Generally, the purpose of a forensic engineering investigation is to locate cause or causes of failure with a view to improve performance or life of a component, or to assist a court in determining the facts of an accident. It can also involve investigation of intellectual property claims, especially patents. In the US, forensic engineers require a professional engineering license from each state.

↑ Return to Menu