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Collecting evidence from a crime scene is a critical aspect of solving crimes. Before signs can be captured, there should first be a court order approving the search of the crime scene and the seizure of the evidence found in the scene. Standard protocol for officers is for them to always use latex gloves, prevent plastic bags, double wrap little objects, pack each item separately, and to gather as much evidence as possible. It's much better to have an excessive amount of proof than to not have enough. There are countless amounts of signs that could be found at a crime scene. Blood spots are just one kind of proof which can be discovered in a crime scene. Blood that's still in the liquid form ought to be picked up on a gauze pad. Once the blood is dried thoroughly it needs to be refrigerated and sent to the Laboratory (Andrus et al., n.d., para. 1). In case the blood stain can be found dried on clothes, the officer ought to wrap the part of clothing in clean paper and put it into a sealed and labeled container. An item with dried blood stains has to be delivered to the Laboratory if it is small enough. In case the object is too large to ship, then using a sterile knife the stain has to be scraped on a clean piece of paper, which then could be folded and placed in a ring (Andrus et al., n.d., para. 2). When collecting autopsy blood samples, the officer must request that the pathologist obtain the sample straight from the heart and put it in a yellow or purple stoppered vacutainer. If the victim is still living but in severe need of a blood transfusion, then the pre-transfusion blood sample needs to be obtained immediately before the hospital discards it (Andrus et al., n.d., para. 4). It's necessary for the Laboratory to receive all of blood samples within 48 ho...