New guidelines are being issued to local schools today about the predictive grading system to be used for the Leaving Cert this year.
There is a section included on what constitutes trying to influence a teacher with gifts ahead of the exams, saying that will be treated as a serious breach of the system.
Any attempt by a student or parent to contact the teacher to discuss estimated marks will be reported to the Department of Education.
It will be judged as a serious attempt to interfere with the fairness and impartiality of a teacher.
