Fire inspectors and investigators need knowledge in the following areas:

• Public Safety and Security: How to protect people and property.
• Customer and Personal Service: Providing special services to customers based on their needs.
• Building and Construction: The tools and methods used to construct buildings, roads, and other structures.
• Law, Government, and Jurisprudence: Laws, rules of the court, and the politics.
• Education and Training: The methods of teaching and learning.
• English Language: The meaning and use of the English language.
• Administration and Management: How to run a business or group.