A school board employee or agent, or law enforcement officer, as defined in s. 102.475 (8) (c), authorized by a public school board may require a public school pupil, including a charter school pupil, to provide one or more samples of his or her breath for the purpose of determining the presence of alcohol in the pupil’s breath whenever the authorized employee, agent or officer has reasonable suspicion that the pupil is under the influence of alcohol while the pupil is in any of the circumstances listed in s. 125.09 (2) (b) 1. to 3. The authorized employee, agent or officer shall use a breath screening device approved by the department of transportation for the purpose of determining the presence of alcohol in a person‘s breath to determine if alcohol is present in the pupil’s breath. The results of the breath screening device or the fact that a pupil refused to submit to breath testing shall be made available for use in any hearing or proceeding regarding the discipline, suspension or expulsion of a student due to alcohol use. No school board may require a pupil to provide one or more samples of his or her breath for the purpose of determining the presence of alcohol in the pupil’s breath until the school board has adopted written policies regarding disciplines or treatments that will result from being under the influence of alcohol while on school premises or from refusing to submit to breath testing to determine the presence of alcohol in the pupil’s breath.