![]() ![]() Shutterstock Testing for traces of blood, semen and other body fluids The crime scene team works meticulously to identify and field test items of evidence before securing them in bags. ![]() Theories are presented and then ruled out in place of new theories as new evidence emerges. This works a bit like the lighting in nightclubs that might expose lint on your black outfit.Īt this stage, the best crime scene examiners invoke the scientific method, proposing hypotheses as to what has happened, and then searching for evidence that may refute their suggestion. We also use some very high-tech torches that can emit a specific type to light to help us see otherwise invisible clues. In some cases, that’s by using chemicals and testing kits to identify body fluids or other traces associated with the crime. The crime scene team works meticulously to identify and “field-test” items (meaning tests are done in situ) before securing them in bags. This helps provide context to guide the search for evidence. Brendan Chapman, Author provided Evidence testing and collectionĪs the forensic investigation unfolds, information and evidence are gathered and given to investigators at the crime scene. The first task, before anything in the scene is disturbed, is to record everything as it appears. ![]()
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