Investigation Techniques of A Homicide. Speaks of the O.J Simpson case

Essay by Leo ShihUniversity, Bachelor'sA+, June 1996

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The O. J. Simpson double murder trial is perhaps the most publicized case this decade. However, before the police can arrest Simpson and prosecute him, they must investigate. The investigation techniques LAPD used are used all over the world.


Patrol officers received a disturbance call at Nicole Simpson's residence. They arrived on scene and discovered two bodies. They looked around to see if the suspect is anywhere around then they checked to determine the two subjects were dead. The officers immediately contacted the detectives on duty and supervisors and then secured the area to ensure no contamination to the scene. The officers' duties included making sure that no unauthorized people may enter the scene. They also have to protect all possible evidences left by the suspect.

In the Simpson case, the officers did not do a very good job at securing the scene. They had allowed unauthorized officers the go through the scene, thus causing some contamination to the crime scene.

This error had allowed the defense to attack the creditability of the police department.


When the officers first arrived the scene, they saw two people lying in a pool of blood. The officers did not know if they were dead and if they were, how and when. After the medical examiner looked at the bodies and the wounds on the victims, he concluded that they were stabbed to death. The time of death was a bit harder to determine. Death caused some changes to the bodies. The investigator looked at the changes and was able to estimate a time of death.

Some of the changes the examiners look for are: lost of body temperature, rigor mortis, and postmortem lividity. The body temperature will start to decrease after death. The body will...