There are several legal appointments that must be made in the workplace according to the Occupational Health and Safety Act, including a health and safety representative, health and safety committee members, first aider, incident investigator, and firefighter. The health and safety representative has various functions including identifying hazards, investigating complaints, and participating in inspections. A first aider must be appointed where more than 10 employees work. An incident investigator conducts investigations following incidents. Firefighters assist with identifying fire hazards and fighting fires under the direction of the firefighting coordinator.