What is CSI?

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What is CSI?
CSI stands for Crime Scene Investigation. As the name suggest it is the inspection of the scene after the crime has occurred. It involves detailed documentation of the crime scene so that it can throw some light on what had actually happened and who were the people involved. It is a science where there is no pre-determined procedure and the investigation differs with the type of crime scene. CSI includes checking all the physical evidence, which includes hair, blood, fingerprints, and taking various photos of the crime scene, which can help in finding the criminal behind the crime.

After the crime has occurred, the police or detectives in charge inform the CSI department. Some investigators from the department reach the crime scene and start the investigation. In the beginning, investigator checks the crime scene and verifies if anything is moved or has been tampered with before the CSI reached the scene. Without touching anything, initial theories about what might have happened are noted down. Then the investigator moves around the scene, taking various photographs, videos and mainly drawing sketches, which could help in the process of investigation. This phase also involves only visual examination. The next process involves collecting various items, which could prove as evidence in the investigation. The investigator carefully collects all the evidence taking care that its details remain intact, so that when they are verified in the crime labs, they give the correct information about the crime. There are various types of evidences and they are collected by the investigators based on their expertise in the field. All the evidences are then verified in the lab and a report is prepared. This report is then sent to the detective in charge of the case.

The investigation done in the lab comes under forensic science while that done at the crime scene is a part of crime scene investigation. However, it is mandatory for a crime scene investigator to have good knowledge of forensic science. This will help him in collecting the critical evidences, which would help the lab investigator to prepare a more accurate report.

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