Solving a criminal case requires information that provides proof of involvement beyond a reasonable doubt. Police, prosecutors and others in the justice system rely on different types of evidence, including traces of human secretions left behind at the scene. Forensic serology studies bodily fluids to capture information relevant to criminal investigations, providing evidence vital to solving crimes.
Analyzing Human Traces
Forensic serology provides evidence for criminal cases based on bodily fluids from a crime scene. Examining blood is the most common analysis that serology performs. Other types of excretions serology processes include saliva, perspiration, sexual fluids and human waste. Forensic serologists search crime scenes for clues, collect samples and avoid contaminating evidence through their activities. They test for DNA, blood type and other relevant information. Serologists also study the location and condition of samples, like blood splatter patterns and solvents used to destroy evidence.
Working in Forensic Serology
Becoming a forensic serologist requires a minimum of a bachelor's degree in forensic science or another related field that focuses on molecular biology, biochemistry and genetics. A postgraduate certificate in the field also provides aspiring serologists with credentials sought by employers. According to the U.S. Bureau of Labor Statistics, employment in this occupation will rise by 6 percent between 2012 and 2022, less than the 11 percent growth rate for all occupations as a whole. Due to the popularity of this field, employers choose from a wealth of candidates, reducing demand for forensic serologists while increasing competition for jobs.
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