A fire inspector is responsible for inspecting existing and new buildings to ensure that they are up to code and do not present any fire hazards. It is a fire inspector’s job to test and examine fire prevention measures, such as fire alarms, sprinkler systems, and evacuation plans. A large company may perform a fire safety drill for the inspector to oversee and provide feedback. For new building projects, a fire inspector supervises and approves fire prevention measures to ensure they meet state regulations. The job of fire inspector should not be confused with that of fire investigator. An investigator examines extinguished fires to find the source. An inspector examines buildings to prevent a fire from starting.