Which of the following activities is included in the investigation process?

The correct choice, drafting and serving subpoenas, is integral to the investigation process because it involves obtaining necessary information and evidence from individuals or organizations that may have relevant knowledge or documentation related to the investigation. Subpoenas are legal documents that compel a person to provide testimony or produce evidence, ensuring that the investigation is thorough and able to gather all pertinent facts.

The other activities mentioned do have important roles in certain contexts, but they do not directly align with the core components of the investigative process. Conducting health surveys, while valuable for gathering data about workplace health and safety, does not specifically constitute a part of the investigative methods used to establish facts or gather testimony in a legal or regulatory context. Providing legal representation is primarily focused on defense or guidance in legal matters rather than on the investigative process itself. Supervising medical personnel is relevant in healthcare settings but does not pertain to the investigative functions that drive legal actions or inquiries.