(a) Affidavit. An affidavit may be filed by any person alleging facts under existing law sufficient to establish grounds to take a child into custody. The affidavit shall:
(1) be in writing and signed;
(2) specify the name, address, and sex of the child or, if unknown, designate the child by any name or description by which the child can be identified with reasonable certainty;
(3) specify that the child is of an age subject to the jurisdiction of the court; and
(4) state the reasons why the child is being taken into custody.
(b) Criteria for Order. The court may issue an order to take a child into custody based on sworn testimony meeting the criteria set forth in subdivision (a).
(c) Order. The order to take into custody shall:
(1) be in writing and signed;
(2) specify the name, address, and sex of the child or, if unknown, designate the child by any name or description by which the child can be identified with reasonable certainty;
(3) specify that the child is of an age subject to the jurisdiction of the court;
(4) state the reasons why the child is being taken into custody;
(5) order that the child be placed in a suitable place pending a shelter hearing as provided by law; and
(6) state the date when issued and the county and court where issued.