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Contaminated evidence is any foreign material that is introduced to a crime scene after the crime is committed. [1] Contaminated evidence can be brought in by witnesses, suspects, victims, emergency responders, fire fighters, police officers and investigators. [2] Juries expect to see forensic evidence before they render a verdict based on that ...
Paper containers allow evidence that is not completely dry to continue drying. [3] This type of collection protects those samples from deteriorating. When the evidence is collected properly there is less of a chance that the items collected will be damaged or contaminated. The development of forensics has improved the level of crimes being solved.
Evidence packaging involves the specialized packaging methods and materials used for physical evidence. Items need to be collected at a crime scene or a fire scene, forwarded to a laboratory for forensic analysis , put in secure storage, and used in a courtroom, all while maintaining the chain of custody .
Evidence management is the administration and control of evidence related to an event so that it can be used to prove the circumstances of the event, and so that this proof can be tested by independent parties with confidence that the evidence provided is the evidence collected related to the event.
When a crime is committed, fragmentary (or trace) evidence needs to be collected from the scene. A team of specialised police technicians goes to the scene of the crime and seals it off. They record video and take photographs of the crime scene, victim/s (if there are any) and items of evidence. If necessary, they undertake ballistics examinations.
The collection method used is entirely based on what the evidence type is and the surface it is on. It is also important to note that great care must be taken to prevent contamination of the evidence with other substances (such as natural oil and sweat on the hand of the collector). [8]
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The cost of rape kits is a barrier to use in many locations where the victim is billed for the collection of forensic evidence. Collecting a rape kit reportedly costs upwards of $1,000. [ 51 ] In some countries, reimbursement for the cost is contingent on the victim reporting the crime to police.