Prior to a hearing as authorized in § 16.1-341, the judge may release the minor to his parent if it appears from all evidence readily available that the minor does not meet the commitment criteria specified in § 16.1-345. The director of any facility in which the minor is detained may release the minor prior to a hearing as authorized in § 16.1-341 if it appears, based on an evaluation conducted by the psychiatrist or clinical psychologist treating the minor, that the minor would not meet the commitment criteria specified in § 16.1-345 if released.