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Crime Scene Investigation

See CSI: Crime Scene Investigation Crime scene investigation is used to by trained cops to provide an answer to what happen and who committed a crime. There are many people involved in the process and each has a specific duty. These duties include a team member, photographer and photographic log recorder, sketch preparer, evidence recorder, and the specialists. The team leader has many duties during the processing of the crime scene. The team leader assumes control of the scene and conducts the initial walk through. When the walk-through is finished, the team member assigns each team member a duty and designates command posts . They must also ensure there is enough supplies and control who has access to the crime scene while it is being processed. After everything is processed they are in charge of releasing the scene. The photographer is in charge of photographing the scene and any major evidence present. They also must make a photographic log and sketch of the crime scene and evidence. The evidence recorder is in charge of bagging the evidence properly and to make sure an evidence log is made. If needed a specialist can be called in to help out the crime investigators. Specialists include anthropologist, criminalists or blood pattern analyst. There are multiple steps during the process. The first is making sure the scene is secure and make sure no one that is unauthorized enters the scene. Extensive notes must also be taken during this time about the scene and those who have entered it. The preliminary survey is then taken after the scene is secure. Many thing must be done during this time by the team leader. The preliminary photographs must be taken during the walkthrough while making extensive notes. A general theory of the crime is made during this time. After the scene boundaries are determined, all of the physical evidence must be evaluated. This includes whether the evidence was moved or if the crime appears to be planned. A narrative description is then formed along with photographs of the scene. The narrative may also be an audio, written, a video, or a combination of everything. During this time no evidence is to be collected. A detailed search is then conducted and all of the physical evidence is photographed again and collected. There are many different ways to collect evidence, it all depends on what the evidence is. Each must be carefully collected so it doesn’t compromise the evidence. A rough sketch of the crime scene is also made while there and later refinished at the lab. Some information it may contain are the specific location, the time and date, the weather conditions, measurements, and a list of the evidence. After a final detailed search of the crime scene is conducted the crime scene is released. All the evidence is taken back to a lab and processed then documented. After all the evidence is collected and processed, the results are passed onto the detectives in charge of the investigation. The crime scene investigators may be called to testify in court about the evidence. A conviction may come from the investigators testimony. csi-response.html
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