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Elements Of Crime Scene Investigation

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According to Bertino and Bertino (2012) there are seven components of any crime scene investigation:
Maximizing safety and securing the scene: Usually the police are the first to arrive at any crime scene and are therefore referred to as the ‘first responders’. The crime scene is dynamic and ever changing. It is therefore the actions of the first responder which will ultimately dictate whether the crime will be successfully solved or not. There are two primary tasks of the first responding officer. Firstly, the first-responding police officer’s duty is to ensure the safety and security of all individuals in the area (including victims, witnesses, officers, bystanders and others). The area needs to be scanned for any kind of danger (e.g., hazardous …show more content…

Separating these witnesses so that they do not communicate with each other in any way is the next step. There have been many studies which indicate that eyewitnesses’ memories may change if they are allowed to speak to each other. Co-witnesses may be influenced and influence each other in myriad ways. In one study it was found that errors made by one witness were incorporated in the accounts of another witness (Wright et al, 2009). Memon and Wright (1999) cite the famous case of Oklahama City bombing. There were three witnesses when Timothy McVeigh rented the truck used in the bombing. At first the two witnesses thought McVeigh had been alone. However, subsequent to talking about this with a third witness who believed that there had been an accomplice, the first two witnesses too came to believe that there had been an accomplice of McVeigh. The FBI now thinks this "accomplice" was an innocent individual who rented a different truck the following …show more content…

It is very essential that the chain of custody be kept intact. Once the evidence has been discovered and catalogued, every person who is the next custodian of the evidence (i.e. is a part of the chain of custody) needs to sign it and is responsible for maintain the integrity of the evidence. The chain of custody may for e.g. begin with the officer who found the evidence, to the lab technician, and so on. Maintaining the chain of custody is of paramount

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Why Is Timothy Mcveigh Rotted In Prison

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Timothy Mcveigh's Murder In The Oklahoma City

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McVeigh had a close friend from the Army that shred his hatred for the federal government. His name was Terry Nichols (The Oklahoma City, 2015). The address McVeigh used belonged to Terry’s brother. This connection allowed investigators to determine that Nichols assisted McVeigh in acquiring material and making the bomb (The Oklahoma City, 2015). The FBI also learned that McVeigh had another Army friend in Arizona where he spent time-sharing his plans.

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Criminal investigation is the process of discovering, collecting, preparing, identifying, and presenting evidence to determine what happened and who is responsible The preliminary investigation includes all the activities that an officer performs when he/she responds to a crime. The officer is responsible for responding immediately and rendering aid to those that are injured. While the officer responds and renders aid, it is important for he/she to note important facts by either writing it down, contacting dispatch, or taking mental note. These facts include the position of the victim or injured, recording spontaneous statements, paying attention to unusual actions or activities, and an assessment of the crime scene. I know it is out of order, but I believe the second and most crucial step is to secure the crime scene.

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Explain How The Policy And Procedure To Establish A Chain Of Custody

434 Words | 2 Pages

Typically, when there’s evidence discovered on a crime scene, it must go through proper policy and procedure. All of this begins at the crime scene when the evidence is being disposed of. Furthermore, the evidence needs to establish a chain of custody so that it can be used in trial to convict the accused. It all comes down to maintaining a proper chain of custody because in the end, it will either make you or break you. When chain of custody is done correctly, it is proof to the court that the evidence presented in front of them is the same evidence collected from the crime scene.

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The first stage will be accessing the potential crime scene to conduct their investigation (Sindhu & Meshram, 2012). This will allow for the CSIRT personnel to assess the scene, interview personnel, and document their findings to determine if a crime has been committed. If a crime has been suspected of being committed, the CSIRT personnel will then begin to collect evidence (Sindhu & Meshram, 2012). This may include retrieving hardware, log files, media, and replicating data stores to be analyzed at a later date. If evidence is collected, the CSIRT team must create and maintain a chain of custody in order to preserve the evidence’s integrity by ensuring it was not tampered and stored correctly (Sindhu & Meshram, 2012).

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They have to know that they cannot touch or process anything on the scene without a warrant. Furthermore, they have to ensure that all of the evidence is collected properly, as well as a proper perimeter is established around the crime scene to keep unauthorized people out of the scene to avoid contamination and collection of evidence. They have to also deal with the issue of sometimes getting information from witness, while making sure that their safety is not placed in any

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