If at the conclusion of the certification review hearing the person conducting the hearing finds that there is probable cause that the person certified is, as a result of a mental disorder or impairment by chronic alcoholism, a danger to others, or to himself or herself, or gravely disabled, then the person may be detained for involuntary care, protection, and treatment related to the mental disorder or impairment by chronic alcoholism pursuant to Sections 5250 and 5270.15.