To become a Fraud Investigator online, you do need to have strong grip on the Firearm Use & Safety course. This course, as the name suggests, focuses on the being careful and taking all of the necessary measures when using an armor. Some of the key tops that are discussed in the course include last restraint, defensive shooting, owning, maintaining guns safely, handling, tactical handgun operation, ammunition, carrying a concealed handgun and low-light shooting.