An arson investigator is a specialized professional who examines the causes and origins of fires to determine if they were intentionally set. They work closely with law enforcement and fire departments to gather evidence, analyze fire patterns, and interview witnesses. Their goal is to identify potential suspects and help prosecute those responsible for committing arson. These investigators use various techniques, including forensic analysis and fire scene reconstruction, to uncover the truth behind a fire incident. They often testify in court as expert witnesses, providing crucial information that can lead to convictions and help prevent future arson cases.