Haw. Code R. § 8-19-15
Except as provided in section 8-19-14 regarding student lockers, students have a reasonable expectation of privacy in their persons on campus, or other department premises, on department transportation, or during a department sponsored activity or event on or off school property. Schools have an equally legitimate need to maintain order and an environment where learning can take place. In fulfilling this legitimate need, school officials may on occasions need to carry out searches and seizures on campus, or other department premises, on department transportation, or during a department sponsored activity or event on or off school property. As a general policy, except as provided in section 8-19-14 regarding student lockers, the searches and seizures are permissible if there are reasonable grounds to suspect, based on the attendant circumstances that the search will turn up evidence that the student or students have violated or are violating either the law or the student conduct prohibited under this chapter. Searches and seizures conducted by school officials shall abide by the provisions of this subchapter.
Haw. Code R. § 8-19-15