What is one requirement for the director to initiate an investigation?

The initiation of an investigation by the director requires a prima-facie case of a violation. This means that there must be enough initial evidence or apparent facts suggesting that a violation of relevant laws or regulations may have occurred. The concept of prima facie involves establishing sufficient grounds that warrant further examination or action. Without this initial basis, the director would lack the justification to begin a formal investigation.

In contrast, the other options do not serve as essential prerequisites for launching an investigation. While a request from local law enforcement, a licensee's previous history, or public interest may influence the decision or context for an investigation, they do not independently establish the necessary grounds for the director to proceed. Therefore, it's the existence of a prima-facie case that is crucial for the director to affirmatively take action.