Return the case to the development unit if the DHU cannot hold the hearing because
                  development is incomplete (e.g., allegations not investigated or insufficient medical
                  evidence).
               
               See DI
                     33010.020 for discussion of returns for additional development (RAD).
               
               NOTE: The disability determination services (DDS) administrator decides whether State jurisdiction
                  cases are to be returned to the DDS for development or the DHU will complete the necessary
                  development. Federal DHU cases are returned to the DDS or appropriate Federal component
                  when additional development is needed.