The principal of any school in the county or district, as the case may be, in which there has been established a 24-hour school shall report to the county superintendent or superintendent of schools of the district, as the case may be, after conference held with the parent or guardian, any pupil in his school who he believes comes within the provisions and intent of this article. This report shall be in writing and shall set forth the facts upon which he believes that the child comes within the provisions of this article.