Investigation Techniques Of A Homicide Essay -- essays research papers

Investigation Techniques of A HomicideThe O. J. Simpson double murder struggle is perhaps the most publicizedcase this decade. However, before the police stool arrest Simpson and prosecutehim, they must investigate. The investigation techniques LAPD utilize are used allover the world.CRIME SCENEPatrol officers received a disturbance call at Nicole Simpsonsresidence. They arrived on scene and discovered cardinal bodies. They looked aroundto see if the suspect is anywhere around then they canvas to determine the twosubjects were dead. The officers immediately contacted the abide byives on dutyand supervisors and then secured the subject field to ensure no contamination to thescene. The officers duties included making sure that no unauthorized people mayenter the scene. They also contribute to encourage all possible evidences left by thesuspect.In the Simpson case, the officers did not do a very good job at securingthe scene. They had allowed unauthorized officers the go throu gh the scene, thuscausing some contamination to the curse scene. This fallacy had allowed thedefense to attack the creditability of the police department.CAUSE AND TIME OF DEATHWhen the officers kickoff arrived the scene, they saw two people lying in a puss of blood. The officers did not know if they were dead and if they were, howand when. After the medical examiner looked at the bodies and the wounds on thevictims, he concluded that they were stabbed to death. The time of death was a pussy harder to determine. Death caused some changes to the bodies. Theinvestigator looked at the changes and was able to estimate a time of death.Some of the changes the examiners look for are lost of eubstance temperature, callousness mortis, and postmortem pallidness. The body temperature will start todecrease subsequently death. The body will also start to stiffen after death, this iscall rigour mortis. Rigor mortis usually starts to set in two to four seconds afterdeath. Time of death can be estimated by the stiffness of the body. other wayto estimate the time of death is postmortem lividity. When the body ceased tofunction, gravitational attraction pulls the blood down and settled at the lowest points of thebody. Postmortem lividity may appear on the body between half hour to four hoursafter death.The determination of t... ...ered more evidences to link Simpson to the murders.All the testimonies showed that Simpson had in reality planned the crime. He evenhad an alibi which was shaky. Simpson also had a news report of spousal abuse. Allthe evidences pointed unfavorably toward O. J. Simpson. The elements of thecrime the police needed were found and Simpson was formally Charged. deoxyribonucleic acidThere were no fingerprints at the crime scene. However, in that location were someblood which belonged to neither victims. Thanks to modern technology,scientists can detect differences in peoples DNA. DNA is the geneticfingerprint of a person. The principal of DNA identification is the same asfingerprints, no two persons can have the same composition. During the Simpsontrial, the admissibility of DNA evidence was highly debated.The O. J. Simpson trial had ended for a year now. O. J. was cleared ofmurdering his former wife and her friend. The police is still probe thiscase. The LAPD made some mistakes which allowed the defense to attack thecreditability of the police. This showed the importance of protecting thecrime scene. Other than these mistakes, the LAPD conducted a almost text bookperfect investigation.t