Bloodstain Pattern Analysis

A shotgun is a firearm which fires shells filled with small pellets called shot, or a solid projectile called a slug. Shot shells allow a shotgun to impact damage over a wide area than that of a standard bullet. Remember that a rifle needs more bullets to kill a wide amount of zombies compared to a shotgun that needs less bullets to kill more

Then the lead officer will need to determine the boundaries of the scene starting at the central point and extending outward, safeguarding the crime scene with yellow police tape noting possible paths of entry and exits of suspects and witnesses. It's better to close off a larger area at first and then make smaller if needed. The precautions that are taken are very important to safeguarding evidence and minimizing contamination.

The understanding of blood spatter patterns is not a widely recognized forensic practice. Bloodstain pattern interpretation (BPI) is commonly used in murder investigations, but could be utilized in everything from simple assault to mass murders if the number of trained professionals increased. BPI can reveal critical information into reinventing a given crime scene. Everything from the number of blows, stabs or shots a victim was given, the movement that was undergone by the victim and assailant after bloodshed began, position of objects at the crime scene and the type of weapon, if any, that was used can be uncovered.

he Blood Spatter Analyst (also known as "Bloodstain Pattern Analyst") uses many techniques to collect and analze blood that has been left behind at a crime scene. They uses swabs and ultraviolet light, as well as photgraphy to collect and analyze trace evidence and recreate spatters. After analyzation of the spatter, they can determine what weapon was used, which direction the suspect or victim went, the number of wounds the victim suffered, the trajectry of a projectile, and what occured during a violent crime.

Bloodstain pattern analysis (BPA), known in the criminal justice field as blood splatter analysis, has been studied since the 1890s. Blood splatter, or bloodstain pattern constructional readings, is a technique that seeks to piece together the incident that caused an individual’s bleeding. Understanding blood splatter on a wall or various surfaces can be instrumental in formulating if a crime was committed and if the blood discovered at the crime scene can be used as evidence. The first documentation of blood splatter research occurred at the Institute for Forensic Medicine in Poland, by Dr. Eduard Piotrowski . During Dr. Piotrowski’s research and documentation period, where he used live bunnies to research blood splatter from head

Forensic science is a key aspect of Criminal Justice that helps rid the streets of lunatics and murderers. One of the most important fields of forensic science is blood spatter analysis. Under the Crime Scene Investigation, analysts gather the information that could eventually lead to a victim’s killer. Basic and complex information can be found when analyzing blood. We can learn what kind of weapon was used, the time of death of a victim and other important facts that can help a case. The pattern that the blood gives off give forensic scientists the tools that they need to help solve cases.

First of all I am going to describe what exactly a shotgun is. A shotgun is designed to be fired from the shoulder. The shotgun fires a shell that holds numerous spherical pellets, also called shot when buying them from stores they are classified by the amount of

They have to make sure that before they entered the crime scene, nothing in the scene should have been moved. While they are going through a walk-through, they may have to construct theories about what happened in the crime scene based on visual examination. Investigators have to take photographs of the scene and will later on be collected. Taking photographs of the scene will help them solve the crime because there are some points of the investigation that investigators may have overlooked evidence, and that evidence could be found in the photographs. After taking photographs of the scene, they will start to collect clue and evidence that may lead them to their possible suspect(s). What they may find in the crime scene are fingerprints which can be done using colored powder and a brush, other thizngs such as blood, firearms, hair, glass and many more things that can be found in the crime scenes.

The book gives a general overview of the field of forensic science. The sections of the book include “The Scene of the Crime; Working the Scene--The Evidence; Working the Scene of the Body Human;

Firearms are classified into three broad types handguns, rifles, and shotguns. Rifles and shotguns are both considered “long guns.” A semi-automatic weapon fires one bullet each time the user pules the trigger, it will also eject the empty shell after

Paintball Guns use co2 to propel the paintballs. co2 is carbon dioxide and carbon dioxide is an expanding gas. The part of a paintball gun that is used to shoot the ball accurately is the barrel. The mechanism that is used to shoot the ball is a trigger, the trigger is what you pull to shoot the ball. The paint ball itself will only break if it hits a hard object otherwise it won't

Crime scene preservation should be the most important step to any first responder. This protocol should continue to be followed by anyone who processes the scene. From the moment the first responder arrives at the scene, he/she should exercise a pertinacious attitude to insure that curious onlookers and personnel who are not involved in a task related to the scene, remain outside the cordoned

Forensic science involves the use of science to solve criminal and civil crimes but mostly lies on the side of criminal investigations. It makes it possible to identify the criminals based on the DNA traces they leave behind. It involves analyses of blood, DNA and other evidences and later on uses the findings as evidence in the court of law. It helps in solving the various crimes in the world and this has been the greatest contributor to the growth of the sector. Cases that were previously considered impossible due to lack of evidenced tracing to the victim can now be solved using forensic science evidences. The essay aims at analyzing the different aspects of forensic science that are used in the process of solving criminal activities. It will also look at the different cases that forensic science was used to solve crimes in a court of law.

Today, more than ever, the quality of evidence in criminal cases is scrutinized because of contamination. Contamination is the introduction of something that physically corrupts a substance at a crime scene that was not previously there; it comes in many forms and most often times comes from the humans who investigate a crime scene. It is imperative that prevention of cross-contamination is implemented when gathering evidence. Several of the more sensitive forensic techniques such as trace analysis, bloodspatter interpretation, and DNA comparison are not being used to their fullest potential. Items of physical crime scene evidence are not always visible to the naked eye and may be easily overlooked so deliberate and methodical approach to collection and preservation of evidence is essential. Prosecutors have lost cases due to crime scene contamination; this could be prevented by simple and productive behaviors. The U.S. Supreme Court, in a leading case on physical evidence, stated:

Moving forward to questions of blood spatter interpretation, historically a subjective area of practice, the work of Trombka et al. (2002) sheds important light on how computerized analysis can now lead to the automation of many elements of blood spatter analysis. This is incredibly beneficial, for this particular CSI technique, because of the fact that computerized analysis brings about the type of parsimony, associated with rigorous hard sciences, which increases a discipline’s credibility in a court-of-law. Indeed, and because computerized spatter analysis will inevitably bring about greater reliability in spatter analysis, inasmuch as cases will now be analyzed in identical ways by different analysts, the discipline’s probative relevance to court cases is likely to be increased dramatically.