This sounds to me like a trustee/ward situation. E.g. a box is rented in a minor's name for storage of valuables owned by the minor but administered by a trustee.

During composition proceeding acreditors' trustee or a supervisor may be appointed by the court to supervise the debtor's transactions. Such may be the case here. The debtor is not actually a ward of the court, but he/she is not permitted to transact business or make full use of a safety deposit box without court-oredered supervision.
Let your context be your guide.