(a) A child who has been transferred from the Family Division to another court of competent jurisdiction may be sentenced or committed to the custody of the Youth Services Administration until the child reaches his eighteenth birthday and then be transferred to the Bureau of Corrections to serve the remainder of the sentence, if any.
(b) If the Youth Services Administration believes the child sentenced under subsection (a) of this section has exhibited conduct which is seriously detrimental to the welfare of others in custody it shall conduct an administrative hearing on the matter. The child shall have rights commensurate with an administrative hearing, including the right to be represented by an impartial representative. If the Youth Services Administration concludes through administrative hearing that the child is seriously detrimental to the welfare of others in custody, it may petition the committing court to have the child transferred to the Bureau of Corrections. The decision of the original commitment or sentence to the custody of the Youth Services Administration and subsequent transfer to the Bureau of Corrections shall be in the discretion of the committing court.
(c) Provided, however, that a child who has been transferred pursuant to section 2508(d) of this title from the Family Division to another court of competent jurisdiction pursuant to section 2509 of this chapter for trial as an adult shall, upon conviction, be sentenced to the custody of the Bureau of Corrections for service of the sentence imposed.