Forensic investigators are professionals who apply scientific methods to solve crimes. They collect and analyze physical evidence from crime scenes, such as fingerprints, blood samples, and other materials. Their work helps law enforcement agencies understand what happened during a crime and identify suspects. These investigators often collaborate with other experts, including crime scene technicians and forensic scientists, to ensure accurate results. They may also testify in court as expert witnesses, explaining their findings to judges and juries. Their role is crucial in the criminal justice system, as it helps ensure that justice is served based on solid evidence.