Senate committee substitute to the 1st edition makes the following changes. Deletes the content of proposed GS 115C-391.2, concerning searches of students, and instead replaces it with the following content. Requires that the policies the governing bodies of public school units adopt governing searches of a student's person or property be consistent with Article 27, Discipline, and US and NC constitutions, statutes, and regulations. Requires search performed by school officials under those policies to be performed using methods narrowly tailored to be as minimally intrusive as possible while investigating the suspected activity. Each policy must require that searches be conducted in private by one school official and one adult witness, both of whom must be the same sex as the student.