What is the importance of forensic serology?
The Forensic Serology Section is primarily responsible for the detection and identification of biological material (i.e., blood, semen, saliva, and urine) on physical evidence in order to: Link suspect(s) and victim(s) to each other and/or to the scene(s) Include or exclude potential suspect(s) or victim(s)
What is the importance of serology in crime investigation?
Serology allows the forensic scientists to segregate these bodily fluids when found at the scene of the crime and then perform a variety of tests on them in order to identify where these fluids originated from ” or most importantly ” who they came from.
What is serology in criminal investigation?
Forensic serology is the detection, identification, classification, and study of various bodily fluids such as blood, semen, saliva, urine, breast milk, vomit, fecal matter and perspiration, and their relationship to a crime scene.
What is the difference between forensic biology and forensic serology?
In fact, in many laboratories they are included within the same unit, collectively titled Forensic Biology. In the forensic laboratory, serology analysis refers to the screening of evidence for body fluids while DNA analysis refers to the efforts to individualize body fluids to a specific person.
What is the main job of a forensic serologist?
Forensic serologists assist in criminal investigations by analyzing blood, urine, saliva, semen and other bodily fluids found at crime scenes. Their work can identify possible suspects, determine cause of death and help detectives unravel the sequence of events surrounding a crime.
What is the importance of blood in forensic science?
Blood is one of the most important biological traces that are often found on the crime scene. Due to valuable information it contains, it is considered to be a very important forensic tool.
What are the 4 main components of blood?
It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues.
What are the two basic types of blood evidence?
There are two different types of blood that can be collected at a crime scene: liquid and dried blood. Liquid blood evidence is generally collected from blood pools but can be collected off of clothing as well, using a gauze pad or a sterile cotton cloth.
What are the different types of blood evidence?
Bloodstains are classified into three basic types: passive stains, transfer stains and projected or impact stains.
How can you tell if a stain is blood at home?
Finding and documenting blood residue Freshly dried bloodstains are a glossy reddish-brown in color. Under the influence of sunlight, the weather or removal attempts, the color eventually disappears and the stain turns gray. The surface on which it is found may also influence the stain’s color.
Why is my dried blood yellow?
Well, for starters, one thing that causes it to be yellow is a pigment called bilirubin. Bilirubin is made when iron-containing compounds in your blood called heme are broken down. Heme makes your red blood cells red and transports oxygen in your blood.
What Colour is platelets?
The color of platelets is a cloudy-yellowish color as seen in bags of donated platelets waiting to be transfused into a patient.
What are the 3 functions of platelets?
While the primary function of the platelet is thought to be hemostasis, thrombosis, and wound healing through a complex activation process leading to integrin activation and formation of a “core” and “shell” at the site of injury, other physiological roles for the platelet exist including immunity and communication …
What is a normal platelet count for a woman?
A normal platelet count ranges from 150,000 to 450,000 platelets per microliter of blood. Having more than 450,000 platelets is a condition called thrombocytosis; having less than 150,000 is known as thrombocytopenia.
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