Trace Evidence Can Be Small Or Large In Size Present
Topic 1trace Evidence Can Be Small Or Large In Size Present An Exam
Topic #1 Trace Evidence can be small or large in size. Present an example of both small and large trace evidence and describe how you would collect them. 100 words Topic #2 There are many special duties that a crime scene technician can do at a crime scene. Discuss some of the different roles and functions of a crime scene technician during an investigation. A specialized person/unit may also be called out. Provide one example of when a specialized person/unit can be called out.100 words.
Paper For Above instruction
Trace evidence at a crime scene can vary significantly in size, influencing how investigators collect and analyze it. Small trace evidence examples include fibers, hair, or Gunshot Residue (GSR). These require meticulous collection methods such as using adhesive tape lifts, vacuum sweepers with filters, or tweezers to prevent contamination and loss. Large trace evidence examples encompass items like broken glass, projectile fragments, or large pieces of fabric. These can be collected by carefully labeling, photographing the evidence in situ, and using appropriate tools like forceps, bags, or containers to preserve integrity.
Crime scene technicians play vital roles during investigations, including documenting and collecting evidence, sketching scenes, and maintaining chain of custody. They are trained to recognize evidence, photograph the scene systematically, and ensure proper packaging to prevent contamination. For example, in a shooting incident, a technician might process the scene, collect shell casings, and photograph bloodstains.
In certain cases, specialized units are called out, such as forensic odontologists for bite mark analysis or bomb squad members for explosive devices. For instance, if an IED is discovered, a bomb squad must handle it to ensure safety and mitigate risks, demonstrating the importance of specialized expertise in crime scene investigations.
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