What does a forensic chemist do?

Forensic chemist is a scientist who will usually work for a laboratory or private government agency for enforcement. He or she identifies and analyzes physical evidence collected from the scenes of crime. Although a forensic chemist generally does not participate in the actual collection of evidence, it is the main part of the crime of the investigative process. Forensic chemistry is a discipline that requires a huge range of knowledge, so the chemist can choose to specialize in writing blood, fingerprints, chemical identification or hair, soil, glass and fiber. Forensic chemists work worldwide, including the United States, Australia and the United Kingdom.

and a forensic chemist who specializes in serology, scientific studies of blood and body fluid writing uses enzyme tests on sperm, blood, saliva, hair, hair or other body fluids found at the crime scene. Because the enzyme compounds found in fluid samples are almost always unique to a particular individual, a chemist canuse the results of the enzyme to determine the unique DNA profile. Investigators can use this profile to find a suspect in DNA database or to compare with possible suspicious.

Samples of evidence are difficult to identify because they can be mixed with other substances, so a forensic chemist who specializes in chemical identification may have to use analytical techniques to separate the chemical compounds of the sample. It will usually use a gas chromatograph, a tool that separates compounds from other dirt, such as dust or dirt, in the sample of evidence. The chemist can then draw conclusions about what is a sample or where he comes from extracted chemical compounds. For example, unidentified color particles found on the victim's body could be tested and found as a special brand and shadow of color. Investigators could then use this information with the sample agrees that the suspect has a suspiciousthat he has a suspect in his house.

In addition to the identification and analysis of evidence at the crime scene, a forensic chemist may have to have part of his work training, as he will usually have to testify in criminal matters as an expert and submit his conclusions about the evidence to the jury. Generally, it will compare evidence with previous cases to present a professional opinion on how to specifically implies this evidence to the suspect. Although forensic chemist will usually work in laboratories of law enforcement, he must provide an impartial, purely scientifically founded findings, although the testimony works in favor of defense.