ORGANIC VS. INORGANIC

Organic vs. Inorganic

Organic vs. Inorganic

There are two types of evidence technicians collect crime scene at the beginning of the investigation. The first is inorganic evidence? including hairs? fibers? tool marks? ballistics? glass? paint and other evidence that might be in or around a crime scene. The second is organic evidence? regarding the locate evidence from a human or animal. (Trombka? 2002? 1-9)

Police use of organic and inorganic analysis to examine the chemical composition of the evidence found at a crime scene? which can be adapted for substances associated with a suspect. Organic analysis conducted on the substances that contain carbon atoms? comprises several techniques? including chromatography? spectrophotometry? and mass spectrometry. Inorganic analysis? performed on all substances which do not contain carbon? using spectrophotometry? neutron activation analysis (a technique of chemical analysis by radioactivity) and X-ray diffraction? among other techniques. (Trombka? 2002? 1-9)

Liquids are some of the evidence more eloquent traces of organic? as much can be determined from its composition. Fluids left at a crime scene might include saliva? semen? sweat and vomit? which can be executed through a wide range of tests in the laboratory of the coroner. The first test that works in all fluids collected from the crime scene is called polymarking? a DNA test. If the person that fluids are at the scene have had their DNA recorded in the systems of law enforcement? or if the police already have a suspect? a DNA match will tell us whether or not the suspect is the author (or victim). (Kirk? 1953)

Liquid can also tell the doctor if the person whose fluids have found a kind of disease or defect and can also check whether the person is male or female. At the crime scene? a splash? track or pool to the application of liquids may give an idea about how the crime occurred. Blood and fluids can say enough about the crime took place and the blood left at the crime scene. Often? law enforcement is not only the blood of the victim? but also for authors. The blood test can help technicians to the scene to reconstruct the crime? often by means of photography or "strings"?(Kirk? 1953) which means the connection string of each blood spatter to show the sequence of events during the crime. Blood will also provide DNA testing and evidence of disease or if the victim or the assailant was male or ...