Blood Spatter
Forensic scientists and investigators can employ numerous forensic techniques to help solve this crime. These can include using biological examination in terms of detecting and identifying bloodstain pattern analysis, analyse ballistics and fingerprints.
Guns are known to produce a distinct bloodstain pattern, which is the High-Velocity Impact Spatter where tiny droplets are caused by blood travelling at high speeds. By using this knowledge that investigators have about guns, they can track down and reconstruct the crime scene using biological examination. Additionally, gunshots leave different types of evidence behind, depending on the distance in which the gun is shot. With close-range shots, guns would usually produce tiny spatters on the victim, which is caused by burning from gunpowder. Also, at very close range, after an explosive shot, high-velocity impact spatters could travel back towards the gun 's barrel as it hits a surface area and spatters back with high force, which is known as back spatter or a blowback. The distance between the gun and the back spatter is also a factor in affecting the amount of back spatters. Further understanding of how different types of guns and other firearms work can be done by firearm experts. Through employing biological examination, forensic scientists and investigators can analyse the blood spatters present on the walls and on the floor with an ultraviolet light to help them identify the locations of the blood that the culprit had attempted
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The amount of damage a bullet has sustained upon hitting a hard surface like the floor or the wall of the abandoned house can help determine approximately where the shooter was standing, what angle the gun was fired from, and when the gun was fired. Any residue on the bullet can be studied and compared to residue on the hand of a suspect, the gun that was fired, or any object that was close by when the firearm was used. This information helps investigators uncover the identity of the shooter. Similarly, studying the markings found on a bullet or the impact a bullet made on any surface can establish exactly which gun the criminal used. Every firearm produces a slightly different and unique pattern on the shell-casing it fires; the bullet will therefore imprint a distinct pattern upon anything it hits. Once investigators and scientists have identified these markings, they can easily match them to the appropriate firearm and identify the criminal of the
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