Chemistry in Forensic Science

Chemistry in Forensic ScienceIn forensic science, the focus is not on finding the criminal but on bringing out the truth of a case. Many elements contribute to this goal. A guilty person's DNA is collected through the collection of blood, saliva, or semen that has been planted in the victim's body. A hair or fiber sample from the crime scene is compared to the suspect.This investigation often involves a number of investigators from different professional backgrounds. Chemistry in forensic science helps to make an evidence-gathering process easier and less frustrating for the investigators. Chemistry in forensic science also makes it possible to collect samples of physical evidence with regards to bodily fluids, bodily prints, saliva, and blood.To get an idea of how investigators are able to collect evidence in this field, take a look at the examples of forensic evidences that include fingerprints, chemical signatures, and other physical properties. Fingerprints are one of the most co mmon tools used by investigators in the field of forensics. The uniqueness of each fingerprint is determined by how it was formed and produced. This is done through how the fingerprint was formed and is changed through what specific process. Chemicals used to form fingerprints such as blood and saliva provide investigators with a unique and personal appearance and identity of the person whose fingerprint it is.Chemical signatures are defined by the specific behavior of the material that is created. What makes the chemistry in forensic science very important is that these are easily recognizable by people that are familiar with this science. One example of a chemical signature would be a DNA profile, which is what allows scientists to identify a person from a sample. DNA profiling is also part of forensic science.How fingerprints are formed depends on how strong the bonds between atoms and molecules are. Each fingerprint, like the DNA profile, is formed from a combination of many che micals, substances, and reactions. Science includes the understanding of the formation of materials and their interaction, as well as the change of a substance through heat, light, or chemicals. All of these elements will play a part in the chemistry in forensic science.Body fluids and physical characteristics can also be analyzed by chemicals. When this is done through the use of a laboratory apparatus known as a spectrophotometer, it is possible to detect any chemical in the sample that was present at the time of the death of the person being analyzed. All of the different types of stains from clothing and the different chemical types found in the environment can also be tested with the use of a spectrophotometer. These tests include the types of stains from blood, which means that DNA traces and saliva may be using to determine whether or not the sample is that of the person being analyzed.Chemistry in forensic science has also helped to determine what substances are going to be tested in an environment like a morgue or crime scene. For example, if there were human remains that were discovered in a home with clues of a murder, law enforcement would need to know what kind of substances were on the body. For instance, if it was blood, then chemicals in blood, whether it was blood on the hands or body of the victim, would be analyzed to determine if it was human blood or animal blood. Chemicals in chemicals such as animal saliva can be analyzed to see if it is human saliva or animal saliva.Chemistry in forensic science also examines the things that are likely to be found in a crime scene, such as fibers or skin, to see if they match the person. It also tries to determine if blood was placed on the object, or if DNA was placed on the object. There are many pieces of evidence, both physical and chemical, that are used in this field of investigation. As evidence gathers, so does the knowledge of chemistry in forensic science.