3 Explain The Significance Of The Crime Scene Walkthrough

3 Explain The Significance Of The Crime Scene Walkthrough Crime Scene Investigation How It s Done Samples That May be Collected at a Crime Scene A wide variety of physical evidence can be collected at a scene that is deemed valuable probative for collection and investigation biological evidence e g blood body fluids hair and other tissues

At the same time the crime scene is being defined with perimeter tape it is also necessary to establish a security system that will ensure that no unauthorized person s enters the crime scene and causes contamination For this purpose a crime scene security officer is assigned to regulate the coming and going of persons from that crime scene Photography of the scene and of evidence is one of the first procedures performed at a scene This generally occurs after the note taking process has begun Take the photographs so that the area and items of evidence will be identified and oriented with other areas in the overall scene

3 Explain The Significance Of The Crime Scene Walkthrough

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3 Explain The Significance Of The Crime Scene Walkthrough
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A homicide is a murder committed intentionally or during the commission of another crime Homicide crime scenes may include where a victim was killed and where the body was found It may also include where a murder was planned or where the murder weapon was discarded Secondary Locations About Resources Get Started These 7 steps of a crime scene investigation remain no matter where or what the crime Find out how these steps apply to any investigation

The purpose of the walk through is to note the location of potential evidence and to mentally outline how the scene will be examined The walk through begins as close to the point of entry as possible The first place the investigators should examine is the ground on which they are about to tread Principle 2 Sequential Examination To ensure that the data recovered during an examination can be optimised it is essential that the sequence of examination proceeds from non invasive to most invasive Sequential examination involves working through evidence in a logical or consecutive order and the non invasive to most invasive approach

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Identifying scenes The crime scene can present itself in a number of ways and may not be immediately obvious to the investigator or initial attending officer There may also be multiple crime scenes which relate to the offence Scenes could include the victim witnesses routes to and from the scene the suspect Could be used to develop crime prevention suggestions such as closing and locking a garage door Reduce disorder Many criminologists contend that social disorder can lead to crime that is blight and other indicators of social decay left unchecked can attract crime and accelerate further decay Thus reducing disorder is a law enforcement

Crime scene reconstruction plays a vital role in forensic investigations by unraveling the events and actions that occurred during the commission of a crime Reconstructionists can piece together the crime scene puzzle through careful analysis of physical evidence logical reasoning and a systematic approach A crime scene is any location that may be associated with a committed crime Crime scenes contain physical evidence that is pertinent to a criminal investigation This evidence is collected by crime scene investigators CSI and law enforcement The location of a crime scene can be the place where the crime took place or can be any area that contains evidence from the crime itself

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3 Explain The Significance Of The Crime Scene Walkthrough - Surveying Crime Scene Walkthrough 1 Perpetrator s point of entry and exit are located 2 Indirect path is taken to the center of the crime scene 3 Obvious items of evidence are located and documented 4 The conditions of the scene are observed and recorded Search Patterns Line Strip Search Pattern Grid Search Pattern Spiral