Forensic science (法庭科学) means (76) ________ (use) science to solve crime. But what exactly does a forensic scientist do 　　At the scene of crime, the crime scene (77) ________ (investigator) will thoroughly examine the area. They will look for fingerprints and palm prints; marks of tools and weapons; marks from shoes; fibers from (78) ______ (cloth); body fluids. 　　Increasingly, CSIs (= crime scene investigators) are using specialized techniques, on site, to determine which areas to concentrate their investigation on. 　　A forensic pathologist (法医) specializes in examining dead bodies to determine how and when death occurred. As well as (79) ________ (examine) the body, either on site or through photos (80) ________ (take) at the scene, the forensic pathologist may also use X-ray imaging(X光成像技术) and will usually conduct an autopsy (尸体解剖). The pathologist will also take samples of body tissues, like blood, liver or hair, for further (81) ________ (analyse). 　　A new form of identification (82) ________ (rely) on DNA, which carries the genetic (基因的) information of each person. Everyone’s DNA is different (except for identical twins). DNA fingerprinting allows police to identify an individual in the same way as fingerprints do. 　　DNA profiles (DNA片断) are a very powerful (83) ________ (mean) of determining whether two or more samples may or may not have come from the same person. If DNA profiles do not match, they (84) ________ (come) from different people. 　　However, if they do match, there is still a very slight chance that they may have come from different people. 　　DNA analysis does not enable scientists to build up a picture of a person from DNA. The only (85) ______ (character) that the DNA tells us is the sex of the person.