657. The best interests requirement.

657.     The best interests requirement.

The relevant person1 meets the best interests requirement if all of the following conditions are met2. The first condition is that the relevant person is, or is to be, a detained resident3. The second condition is that it is in the best interests of the relevant person for him to be a detained resident4. The third condition is that, in order to prevent harm to the relevant person, it is necessary for him to be a detained resident5. The fourth condition is that it is