An order by a juvenile court judge putting the juvenile in the custody of a state juvenile correctional authority, or another specific juvenile correctional facility, is called a

He applied his skill in engineering to toughen up the defence

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.