Important Members of the CSI team and their Respective duties

An entire team carries out the Crime Scene Investigation. In this team, there are various members with their own level of expertise and they play their own respective roles in the work carried out by the CSI unit. The major work of the CSI unit revolves around the processing and collection of a crime scene. Securing the crime scene is also a part of the responsibility of the CSI unit. It is the CSI that does the initial walk-through of the crime scene and evaluates the scene without collecting the evidence yet. It is also part of the job of the Crime Scene Investigation’s job to find out if anything on the crime scene was moved before their arrival.

In the CSI unit, it is the lead Crime Scene Investigator who carries out the task of doing the initial walk through of the crime scene. Ensuring the protection and safety of the people and the objects at the crime scene is another responsibility of the leader. This includes the securing and preserving of the crime scene as well. Considering that search patterns at crimes scenes may vary according to nature of crime, the team leader also assigns each member responsibilities. The coordination on behalf of the entire CSI team with the law enforcement agency is also done by the lead Crime Scene Investigator. Monitoring the efficiency of actions and the search operation at the crime scene is another of the responsibilities of a CSI.

When the initial evaluation of the crime scene is complete, the CSI unit starts collecting and documenting the evidence. During this process, there are various members of the CSI Crime Scene Investigation team that fulfill their responsibilities and hence, do all the evidence collection and documentation in a precise and meticulous manner. In the job of a CSI, there are specific jobs that relate to the responsibilities of the person.

At the crime scene, it is a prerequisite that any physical evidence is tagged and photographed. This is the job performed by a Crime Scene Photographer who is a member of the CSI team. A Crime Scene Photographer is sometimes also known as a forensic photographer. Taking a photograph is like capturing a moment in time and it is like looking at a crime scene from an external viewer. The forensic photographer is supposed to tag the pieces of evidence at the crime scene and take their photograph. At crime scenes, pieces of evidence are put into envelopes. However, before putting them in there, the photographers also take a photo of the way the object was placed. As the photographer takes pictures, another part of the job description is to handle the photograph logbook in which an entry of each of the pictures should be made.

Before the CSI team enters the crime scene, the photographer is also required to take a photo.
In addition to photographing the physical evidence and objects at the crime scene, the forensic photographer also captures a snapshot of the victims as well as the crowd around the scene and also the vehicles. The forensic photographers are instructed to make use of measurement scales if required. This is for photographing the crime scene evidence from different distances, which means an overall shot, a medium one and another close up one. In addition to the physical objects, the fingerprints and impressions are also photographed. If is after this that casting is done on these impressions.

A Crime Scene Technician is also a major part of the CSI unit. A technician is a specialist who is responsible for collecting evidence from the crime scene and managing this evidence. The responsibilities that a Crime Scene Technician fulfills at the crime scene include the collection of evidence and then recording this evidence in the logbook. Another important responsibility of the technician is to prepare reports and present them to the supervisor in oral and written form.

There can sometimes also be a sketch preparer in some CSI teams. The main responsibility fulfilled by a sketch preparer is to sketch the crime scene and sketch the important details. Placing the main pieces of physical evidence into the sketch is one of the main priorities of a sketch preparer. It is also the responsibility of the sketch preparer to label and point out areas that need to be searched. Taking various measurements at the crime scene and then rechecking these measurements is another of the job roles of a sketch preparer.

In some cases, the nature of the case requires that additional consultation be brought on board for the case. This mainly includes the CSI specialists. Whether the specialists are permanent of contractual members of CSI teams at a particular time depends on the size of the law enforcement agency. Some of the CSI specialists that are most popularly brought onto cases for additional advice include blood pattern analysts, bomb technicians, entomologist, a medical examiner and an odontologist. Among these, the medical examiner is mostly the permanent member of the CSI team and works with the law enforcement agency for the post mortem analysis.

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