Final answer:
When a policy isn't being followed, the supervisor should address the situation calmly and respectfully, listening to the other person's perspective and focusing on problem-solving.
Step-by-step explanation:
When a policy isn't being followed, the supervisor should first address the situation calmly and respectfully. They should listen to the other person's perspective and try to understand their position by asking open-ended questions. The supervisor should avoid blaming or inflaming the situation and focus on problem-solving instead. If the conflict cannot be resolved, it may be necessary to involve a higher authority such as a supervisor or HR department.