Final answer:
The primary purpose of a food service officer is to oversee public health and enforce food and drug laws. They are responsible for ensuring hygiene and safety regulations are followed in food establishments.
Step-by-step explanation:
The primary purpose and duty of a food service officer is to oversee the promotion of public health by providing essential human services and enforcing food and drug laws. They ensure that food establishments adhere to strict rules of hygiene in food handling, as well as safety regulations in food production and storage. Food service officers, also known as Consumer Safety Officers, inspect facilities, investigate complaints, illnesses, or outbreaks, and review documentation to ensure compliance.