(a) Subject to subsection (b) of this section, no teacher, administrator, or other employee of a school district or supervisory union shall be subject to discipline by the school district or supervisory union for testifying before the General Assembly or a committee of the General Assembly or before the State Board of Education.
(b) A teacher, administrator, or other employee of a school district or supervisory union who testifies before the General Assembly or a committee of the General Assembly or before the State Board of Education shall not divulge information that is confidential to the school district or supervisory union or to its students or staff and may be disciplined by the individual’s employer for divulging such confidential information.
(c) A teacher, administrator, or other employee of a school district or supervisory union who testifies before the General Assembly or a committee of the General Assembly or before the State Board of Education shall, unless authorized by the individual’s employer to testify on the employer’s behalf, state for the record that the individual is not testifying on behalf of the individual’s employer.