A more thorough explanation:

ad auctoritatem praestandam

Ad auctoritatem praestandam is a Latin term used in law. It means "interposing their authority." This phrase is usually used to describe tutors or curators ad litem who provide authority but do not have any personal liability in exercising their office.

One example of ad auctoritatem praestandam is when a court appoints a guardian ad litem to represent a child's interests in a custody case. The guardian ad litem has the authority to make recommendations to the court, but they are not personally liable for any decisions made.

Another example is when a trustee is appointed to manage a trust. The trustee has the authority to make decisions about the trust, but they are not personally liable for any losses incurred by the trust.

These examples illustrate the concept of ad auctoritatem praestandam because they show how someone can be given authority to act on behalf of another person or entity without incurring personal liability.