Blood Batter Analysis: Close Criminal Cases

Blood spatter analysis is the examination of shapes, locations, and distribution of blood spatter in order to interpret and develop a storyline leading to what exactly caused the blood shed. Blood spatter analysis is often used as a criminal investigative tool used by criminal investigators, such as the police and the government. Blood spatter was discovered and used in the late 1890s, however it was not known as a highly valuable forensic tool until the late 20th century. The topic of blood spatter analysis is important for a variety of reasons, but the most pertinent one is that it helps close criminal cases. This topic is important because it helps determine how easily investigators will be able to close case in which there is bloodshed. …show more content…
There are 3 main types of blood spatters, all of which tell a completely different story of the cause of bloodshed. The first kind of blood spatter is called low force or low velocity. This kind of blood spatter falls at the speed gravity pulls it down, and makes the largest and most circular out of the three spatters. These types of blood spatter usually appear after a stabbing or close range assault. The second kind of blood spatter is called medium force or medium velocity. This is produced with more force than just gravity, and usually varys in size and shape, however the blood in the pattern is close to each other. This type of spatter is seen with full force stabbings, blunt force objects, or secondary stabbings. The last kind of blood spatter is called high force or high velocity spatter. This spatter is seen after an extremely high amount of speed and force was used. The force needed to make a spatter like this is at least 100 ft per second. The spatter itself looks like a mist of blood, usually with a vast amount of extremely small dots. This type of spatter is seen only with gun shot wounds from far away, explosions, and high speed …show more content…
People lie often, however with blood spatter analysis, investigators can see through them. For example, blood spatter analysis of a crime scene can determine the positions of a victim, defendant, witness or suspect, determine if the attack was one sided or if there was evidence of a struggle, and lastly it can refute statements made by suspects or victims in a case. Other than prove useful in terms of with people, blood spatter can prove a list factual things that are extremely needed in order to solve cases. Analysis of blood spatter can identify distance of blood source to target, the direction of travel and impact angles, nature of force used to cause the blood shed, and lastly the object used to make the bloodshed. All of these things above are crucial to closing a criminal investigation, all of which could hardly be found without the use of blood spatter analysis. This is why blood spatter is more useful to criminal investigators than fingerprint