The blood at the scene is collected immediately as well as from the victim and the suspect. Blood splatter can be used for reconstructing the events of a crime as well as corroborating the information given by the roommate, by identifying the point of orgin, investigators have a general idea of where the attack started. Blood splatter can also determine the postion of the suspect to the victim, the number of times the suspect wounded the victim and the method of attack, such as any hesitation during the attack. It should be thoroughly documented and photographed, sketched. Photographs are taken to create a permanent visual documentation of the crime scene. These photos can be admitted as evidence if the case goes to trial but they must be legal standards of being relevant and material to the homicide. The photos must be able to prove or disprove and disputed fact in the case (Lasley, Guskos, Seymour. 2014). The coordinates are measured at the crime scene, before any phsyical evidence is collected. Measurments can determine, physical dimensions and distances of evidences within the crime scene. A baseline coordinate is establied between two fixed points, such as from one wall or another then a second measurement is taken from one point to a seperate baseline measurement. This can later aid in more accurate sketchings of the scene in question. …show more content…
The investigators main responsibility is to provide prosecutors with enough evidence that beyond a reasonable doubt the requirements of the homicide have been met. Evidence to be provided include tangible evidence, such as the clothing, knife and microscopic evidence and fingerprints along with any lab results, testimonial evidence and documentary