What authority does the board have to enforce compliance during an investigation?

The board has the authority to issue administrative subpoenas, which empower them to compel witnesses to provide testimony or produce documents relevant to their investigations. This mechanism is crucial for enforcing compliance because it allows the board to gather necessary information that may not be readily provided voluntarily. The ability to issue subpoenas signifies a legal power that facilitates a thorough and effective investigative process, ensuring that the board can hold parties accountable and obtain evidence that is vital for determining compliance with relevant regulations and laws.

The option regarding limited public access to information pertains more to confidentiality and privacy during investigations rather than enforcement authority. Conducting investigations without oversight does not reflect a legal process, as investigations typically require some form of oversight to maintain fairness and legality. Lastly, requesting voluntary compliance from witnesses lacks the enforceable power that administrative subpoenas carry, making it less effective in compelling participation and cooperation during investigations.