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* To help prosecute suspected criminals, law enforcement officials employ the federal agency of serologists, professionals who are trained to analyze ocellus samples, perform clamor analyses and interpret the signifi hindquartersce of extractionstains. The outcome of a criminal subdue can be affected significantly by a serologists testimony. Analyzing Blood Samples * Suspicious stains that are discovered at the dig of a crime are not always what they believe to be. In fact, even if they are confirmed as smear stains, a serologist must eliminate the possibility that they came from an animal quite an than a human being. Once extraction is verified to be human in origin, serologists are able to make correct guesses regarding the age, sex and blood group of the person from whom it came. Even a small amount of blood--such as that discovered below the fingernails of a victim who scratched at an attacker during an round down--can be examined under a microscope to yie ld clues to the attackers identity. seminal fluid Identification * In a sexual ravish investigation, serologists are enlisted to examine fluid swabbed from assault victims and charged with the business of identifying the presence of spermatozoa, or sperm cells. Semen analysis is conducted through microscopic examination.

Once semen has been identified, it can be study to characterize chemical substances that will designate the ABO blood type of the donor, according to the book working Aspects of Rape Investigation, by FBI agent Robert R. Hazelwood and Ann Wolbert Burgess, professor of psychiatrical nursi ng at Boston College. Explaining Patterns ! * In the wake of a violent crime, bloodstain patterns take into account criminal investigators with such entropy as the speed with which an hurt person attempted to flee from the scene or the localization principle and description of an attack. For example, sustain motion may be indicated by blood that is smeared crossways a wall or a piece of furniture, and blood cast off in lines of splashing typically...If you want to enamor a full essay, order it on our website: BestEssayCheap.com

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