2. Divide the width by 10 (to give a systematic sample). Then measure the depth using a meter ruler, orientating the ruler parallel to the stream flow to minimise drag.…
In order to apprehend a criminal the first steps involve evidence collection. CSI technicians collect blood samples either by submitting a piece of clothing or by using a sterile cloth and a small amount of distilled water to remove some blood from the body as well as collect blood samples by scraping trace blood spatter from walls and floors into a sterile container using a scalpel. Blood samples are also collected from the body. These samples are then sent to be analyzed to determine if the samples are the same since any blood at the crime scene may belong to either the victim or assailant. The lab will perform DNA analysis on the sample as well as the victim to determine whether or not it can be used later to compare to blood taken from all suspects.…
2. Draw a second slide across the surface of the first until it contacts the drop. The drop will spread evenly across the edge of the top slide.…
3. How is blood type determined? What happens if someone is given the wrong type of blood in a blood transfusion?…
Bloodstain patterns can help investigators distinguish between an accident and foul play. If two similar-sized blood droplets fall from different heights, the resulting stains will have…
was considered the crime scene. Blood, a pubic hair, and a footprint were collected as…
When investigating a crime scene, many different variables are taken into account such as fingerprints, any other forms of DNA, or even clues left behind at a crime scene. Even looking at blood splatter, the forensic technician can conclude an estimated guess to the weapon used, the height of the person, whether it was foul play or not, and even if it was passive patterns or projected patterns. Blood splatter analysis becomes important when recreating a crime scene (Peschel). Bloodstain pattern analysis comes into play; and that is the interpretation of bloodstains at a crime scene in order to recreate the actions that caused the bloodshed (“A Simplified Guide”).…
Answer: They need to make sure it is blood or another substance. They can learn who it belonged to especially if it is dried.…
What is the first step you should take when you discover a victim bleeding heavily?…
Houck, M. M., & Siegal, J. A. (2010). Fundamentals of Forensic Science (2 ed.). Burlington: Elsevier.…
analysis. If the blood was found to be flung in a scattered array, there is a good…
Pressure is applied on the wound so that the blood flow slows down and eventually stops the bleeding. This is important because it will help you to lose less blood and the body will resume the normal circulation faster. It will also help the wound to become scabbed which means that the platelets in the blood become clotted to stop the bleeding. For example if Colin got a severe cut on his leg and it wouldn’t stop bleeding then you should apply pressure on the wound to stop it bleeding.…
There are many experts deeply involved in this study, and they are frequently called upon to help solve crimes. Ballistics details are also commonly input into a large database that can be accessed by law enforcement agencies all across the country. When someone enters new data, the computer locates any relevant data from previous investigations. This information can lead to the discovery of the…
4- Measure how many drops fit until the drops break the surface tension of the water.…
Biological evidence can be destroyed or damaged by weather conditions, individuals can inadvertently contaminate it, or it can be overlooked entirely if alternate light sources are not used to inspect the scene. The biological evidence found at this crime scene was the blood, hairs, and the fingerprint that matched the victim, Danielle Van Dam…