PARAMUS - Bergen County Community College students are asking school officials to fire longtime Professor Peter Helff over accusations he tampered with his granddaughter's grade.

The Board of Directors launched an internal investigation against the math professor after the allegations surfaced. More than two dozen people were interviewed over a five-month period. In the end, the investigation found the Helff violated college policies and procedures by changing his granddaughter's grades.

School officials say they have taken steps to secure the grading system by restricting access to students' grades and requiring both a paper and electronic copy of a grade-change request.

The Board of Trustees say they plan to bring tenure charges against Helff, who is currently suspended without pay.