Which of the following is a scenario in which a banning order may be utilized?

A banning order is a legal tool used to prevent an individual from entering a designated area or coming into contact with specific persons. This authority is often employed in situations where there is a concern for safety, particularly in instances of harassment or threats of violence.

In the context of the provided scenario, utilizing a banning order to prevent harassment by a relative is appropriate because it addresses a direct risk to someone's safety and well-being. The order can legally restrict the relative’s access to the victim, thereby providing a necessary protective measure to ensure the victim feels safe and secure.

The other options focus on facilitating access or support that does not involve safety concerns. Allowing public access to a facility does not necessitate exclusion or a banning order, and a banning order would not apply to facilitating medical examinations or providing legal representation, as these actions typically require communication and the presence of the individuals involved rather than restrictions. Therefore, only the option concerning harassment by a relative aligns with the intended use of a banning order.