A teacher subpoenaed for jury duty or as a subpoenaed witness, other than a court proceeding occasioned by the employee’s private or personal affairs, shall not be subjected to a deduction from salary as a result of absence from regular teaching duties in that connection, but rather shall endorse and pay over to the Division any compensatory per diem allowance received from the judicial authority, other than that received for food, travel or room. Any teacher required to be absent for these purposes shall submit details at the earliest possible date and keep the Division informed on the teacher’s anticipated absence and return date.