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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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665 rescue workers responded to the bomb site. Michael and Lori Fortier were identified as accomplices. Timothy was a gulf war veteran. Mcveigh was motivated by his hatred toward the federal government and his anger by its handling of the waco siege and ruby ridge case. The investigation was named OKBOMB.

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Later the investigations lead to other acquaintances. Such as terry Nichols, an army buddy of Mcveighs. Also Michael Fortier gets caught up in the situation, but he did not play a large role like Mcveigh and Nichol

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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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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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Science has come a long way over the years. It has helped countless every day struggles and cure diseases most commonly found. What you don’t hear about however is the advancement of forensic science. Forensic science has helped solve countless cases of murder, rape, and sexual assault. In the case of John Joubert, it helped solve the murders of three young boys with one small piece of evidence that linked him directly to the crime.

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Police, however, are not required to follow the use-of-force continuums in a set order.” The police officer may apply whatever amount of force is required by the circumstances of the confrontation”. If officers feel like they are being

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During this role, the officer or officers are to produce clear, concise, documented information of his or her observations and actions. This documentation is vital in providing information to substantiate investigative considerations. The policy for this step is that all “Documentation must be maintained and presented as a permanent record.” This includes personal information from witnesses, victims, suspects, and any statements or comments made. Your own actions related to the case and the actions of others dealing with the evidence.

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The first thing we need to discuss is what the ideal eyewitness should be and how they are in the judicial system. The eyewitness’ testimony is taken as the fundamental criterion, and the person should be able to perceive all that transpired during the event, accurately encode these perceptions, exhaustively store the encoded perceptions in memory, and accurately retrieve the encodings from memory in the form of later reports (Penrod, 121). I personally feel that eyewitnesses should be honest no matter what, even if they committed the crime. The trial would not be a long investigation if people owned their mistakes. Also when there are lots of witnesses the investigation can change multiple times and feel like the whole thing is starting back at square one.

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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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Police officers are faced with array situations each day they decide to wear the uniform for their department in which they work for. Each day is a different day with different situations that they will encounter and no two situations are ever the same. When responding to a call officers are already in the position of having to make a decision on how to handle the situation they are about to respond too. This is normally done with little supervision and advice from their fellow co-workers, this is where the heart of a police officer discretion comes in. In today’s society officers in some areas can face situations when extreme force will be necessary.

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Anything that can be used in a court of law is referred to as forensics. Forensics can be any scientific test that can prove a connection to a crime. The information obtained in any test must be admissible in a court of law. There are many branches of forensic sciences; one branch that is not well known is forensic radiography, or forensic imaging. “Conducting examinations that use ionizing radiation to gather and analyze forensic evidence constitutes forensic radiography” (ASRT. (2010).).

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The case of Gareth Williams, an MI6 (British Secret Intelligence Service) agent specialized in decoding, was found decomposed and unclothed inside a sports bag in his bath, over a week of his death. Following over a year of investigating a potential DNA profile, the LGC realized that the profile was a contaminant and belonged to one of its forensic scientists, subsequently apologizing to the agent’s family for the typographical error (Anon, 2012). It was crucial to determine whether he was dead or alive when he was locked in the bag and if he could have padlocked himself in. Experts evidence exposed that it was highly improbable for him to have locked himself in the bag from the inside (Anon, 2012).

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