Crime Scene Investigation Process

Throughout the course of this paper I am going to discuss crime scene

investigation, as well as, crime scene processing. I will define what a crime scene is,

what makes it a crime scene and what happens at a crime scene. I will also explore what to look for at a crime scene and what evidence will aid in the prosecutions of criminals.

Crime scene investigations can be indispensable in prosecuting a case, due the possibility

that mistakes can be made with forensics. Crime scene investigations include, but by no means

are limited to homicides, sexual assaults, armed robberies, home invasions and burglaries. There

is a lot of time spent processing crime scenes, packaging and transporting evidence,

attending
Improperly handled blood evidence can weaken or destroy a potential source of

facts in a case. Properly collected and preserved blood evidence can establish a strong

link between an individual and a criminal act. Blood evidence or the lack of blood

evidence can also be used to bolster or contradict a witness statement or any statements

that the suspect may make. Blood evidence can also point the investigator in the

direction he or she needs to go to solve the case. If blood evidence is documented,

collected, and stored properly, it can be presented to a judge or jury several years from

the time of the criminal act. Perhaps the most powerful application of blood evidence is

the ability to absolutely eliminate a person as a potential suspect in a crime.

The next obstacle at hand would be fingerprinting the crime scene and suspects. At

the time when fingerprint evidence was first admitted by courts, such evidence or

experience in dealing with millions of fingerprint records was not available. However, with the

data that is available today, it would be ludicrous to argue that the premises
Now on to blood spatter analysis, which has become a very critical element in

crime scene investigations today. When murders or accidents occur, blood usually tends

to splatter the environment (walls, floors, etc.). How that occurs can determine the angle

of impact, the item used, etc. Crime scenes that involve bloodshed often contain a wealth of

information in the form of bloodstains. The pattern, size, shape, and the location of such stains

may be very useful in the reconstruction of the events that occurred. Bloodstain Pattern

Analysis examines the shapes, locations, and distribution patterns of bloodstains, in order to

provide an interpretation of the physical events which gave rise to their origin. Thus, help

understand what may have actually happened at the scene of the crime. The understanding of

blood spatter patterns is not a widely recognized forensic practice.

Bloodstain pattern interpretation (BPI) is commonly used in murder investigations,