Often in a crime, blood can be found. The procedure to extract DNA blood cells and link them to a specific species is called serology, which is studied by a serologist. In today's increasing technology, analyzing clues requires high-tech instruments. The scientist who operates these machineries is named the medical technologist. A forensic anthropologist is the one who studies the human body. He is able to determine the height, sex, injuries and many other characteristics of an incomplete human corpse. Nevertheless the odontologist is the scientist who can identify a person by studying the teeth. It is obvious that a forensic team is composed of a countless number of specialists; it even has a member who studies insects; he is the entomologist. In the near future, a forensic team may enlarge or it may even be reduced. Forensics has only just begun, but modern technology, computers and gadgets that are soon to be discovered, may replace certain scientists. "Current forensic techniques are only a preview of crime detecting methods that will be available in the next century." New and improved lasers will be able to lift prints that were never imagined possible to obtain. Police cars might even have mini computers, which will be able to identify fingerprints right on the spot. Who knows what else will be invented to graduate the research in forensic science. .
Without evidence, crime scene investigation and forensic science would not be able to exist. Human or biological evidence can be determined by any clues coming from a human being. Often this evidence gives proof of identity of either the victim or the killer. Fingerprinting is the most common identification technique. "Everyone is born with a unique set of tiny ridges on the skin covering the last part of each finger in the side opposite the fingernail." Fingerprints will never change, even if the tips are burned, the ridges will grow back in the same pattern.