Evidence Analysis: Homicide Scene Analysis

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Homicide Scene Analysis
Evidence analysis and ranging is the most crucial stage of investigation. The success of the case exposure lies in the gradual evidence research and collecting prior to the laboratory analysis. The CSI systematically makes his way through the crime scene collects all potential evidence, tagging, logging and packaging so it remains intact on its way to the lab. Depending on the task breakdown of the CSI unit he may or may not analyze the evidence in the lab.
The following paper explores a homicide scene at a convenience store / gas station at 3 a.m. The material of the investigation is represented with a number of visible evidence, the dead body with an apparent gunshot wound in the chest and the testimony of the first officer at the scene. The paper is divided into four parts, including the general overview (introduction), latent impression processing, people’s involvement investigation procedure and evidence package for the further fingerprint analysis. The crime scene investigation protocol used in this paper includes interview, examination, photographing, sketching and processing itself (Castleman, 2000: 23). Observing the homicide scene we omit the analysis of the preliminary procedures as security of the scene, integrity precautions, photographing and sketching.
1. Latent Impression Processing
At the initial stage of the investigation all the visible evidence is to be observed from the latent impression perspective. At this stage only the physical evidence is taken into account. The objects can be divided into porous and non-porous surfaces from the imprint ability preservation perspective. It is advisable to send all the available evidence to the laboratory expertise, though the non-porous substances...

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The bullet as evidence is to be handled with much care as its surface can loose the imprint very easily. The bullets and shells are collected into the pillboxes or can be placed into the paper envelopes for a small period of time.
In case if the firearm is involved, we can approach it as both movable and non-movable object. At the initial stage it can be processed with a super glue fuming and later packed into the paper envelope for the further analysis. In case of the blood stains on it we can go back to the initial stage for the swabbing procedure.
If handled with care the evidence can be the best assistance to the crime investigator and can be used as a major proof in court. To improve the investigation any detective or expert has to admit the necessity of the non-movable items observation and processing apart from the regular movable evidence collection.

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