(a) A motion for an order of protective custody may be filed only in the court in which an application for court-ordered treatment is pending. The motion may be filed by the county or district attorney or on the court’s own motion.
(b) The motion must state that:
(1) the judge or county or district attorney has reason to believe and does believe that the proposed patient meets the criteria authorizing the court to order protective custody; and
(2) the belief is derived from:
(A) the representations of a credible person;
(B) the proposed patient’s conduct; or
(C) the circumstances under which the proposed patient is found.

(c) The motion must be accompanied by a certificate of medical examination for chemical dependency prepared by a physician who has examined the proposed patient not earlier than the fifth day before the date the motion is filed.
(d) The judge of the court in which the application is pending may designate a magistrate to issue protective custody orders in the judge’s absence.
(e) The judge or designated magistrate may issue a protective custody order if the judge or magistrate determines that:
(1) a physician has stated the physician’s opinion and the detailed basis for the physician’s opinion that the proposed patient is a person with a chemical dependency; and
(2) the proposed patient presents a substantial risk of serious harm to the person or others if not immediately restrained pending the hearing.
(f) The determination that the proposed patient presents a substantial risk of serious harm may be demonstrated by the proposed patient’s behavior or by evidence that the proposed patient cannot remain at liberty. The judge or magistrate may make a determination that the proposed patient meets the criteria prescribed by this subsection from the application and certificate alone if the judge or magistrate determines that the conclusions of the applicant and certifying physician are adequately supported by the information provided. The judge or magistrate may take additional evidence if a fair determination of the matter cannot be made from consideration of the application and certificate only.
(g) The judge or magistrate may issue a protective custody order for a proposed patient who is charged with a criminal offense if the proposed patient meets the requirements of this section and the administrator of the facility designated to detain the proposed patient agrees to the detention.
(h) A protective custody order shall direct a peace officer or other designated person to take the proposed patient into protective custody and transport the proposed patient immediately to a treatment facility or other suitable place for detention. The proposed patient shall be detained in the facility until a hearing is held under § 462.066.