D.C. Code § 7-1305.15: Coordination of services for dually diagnosed individuals.

If a person is committed by the Court to DDS pursuant to this chapter or committed by the Court to the Department of Mental Health pursuant to subchapter IV of Chapter 5 of Title 21, or if a person is temporarily placed with DDS pursuant to § 7-1303.12a during the pendency of commitment proceedings, and DDS or the Department of Mental Health has reason to believe that the committed person or the person temporarily placed with DDS pursuant to § 7-1303.12a is dually diagnosed as having both mental illness and an intellectual disability, DDS and the Department of Mental Health shall collaborate in assessing the person and shall jointly provide appropriate supports and services for the person.