Crime scene investigators or forensic science technicians work with a law enforcement agency or an organization that utilizes trained investigators. They collect, identify, classify and analyze physical evidence to help solve and prosecute criminal investigations. Crime scene investigators may test weapons, clothing, fibers, hair and tissue for criminal evidence.
A crime scene investigator or a forensic science technician performs the important role of investigating the crime scene and collect evidences so that crime cases may be solved and the perpetrators of the crime can be nailed. In this process of investigation, crime scene investigators have to perform many tasks and duties.