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Entomological evidence collection is the process of collecting evidence based on insect clues used in criminal investigations.If evidence is not carefully preserved at a crime scene after a death, it may be difficult or impossible for an entomologist to make an accurate identification of specimens, if for example, all morphological characteristics are not preserved.
Items might include DNA, drugs, hair samples, body parts, blood samples, sperm, knives, vomit, firearms, bullets, fire accelerants, computers, checkbooks, etc. Each police or fire jurisdiction has its own policies and procedures for evidence collection and handling.
Adam was a suspect in a street fight, and saliva samples had been taken from him. After a woman was attacked in Manchester, a tray with his evidence was reused when in fact, it should have been disposed of. This fault in a procedure by a worker at LGC caused Adam Scott to be jailed for five months before the mistake was later picked up on. [7]
Forensic entomology deals with the collection of arthropodic evidence and its application, and through a series of tests and previously set rules, the general admissibility of said evidence is determined. Forensic entomology may come into play in a variety of legal cases, including crime scene investigation, abuse and neglect cases, accidents ...
Forensic DNA analysis can be a useful tool in aiding forensic identification because DNA is found in almost all cells of our bodies except mature red blood cells. Deoxyribonucleic acid is located in two different places of the cell, the nucleus; which is inherited from both parents, and the mitochondria; inherited maternally.
Examples of these databases include, missing persons, convicted offenders, and forensic samples collected from crime scenes. Each state, and the federal system, has different laws for collection, upload, and analysis of information contained within their database.
Trace evidence is found in many different forms with some examples including, but not limited, to fire debris, gunshot residue, glass fragments, and fibres. [2] Each of these types of evidence will have a trained analyst in that specific field who will conduct the analysis on these items.
Regarding the evidence collection from a questioned sample, these are most likely samples acquired by accident. Such as a suspect obtained soil or rocks in their shoes or pants. The forensic geologist therefor does not chose the size of the questioned sample and most likely will not be comparable in size to the control sample.