At a special hearing Tuesday, DVC officials came under fire from state lawmakers for how they've handled the case, NBC11's Jodi Hernandez reported.

Officials assured lawmakers they've done all they can to make sure grade fixing on campus won't happen again.

"As soon as we learned we had a problem, we took immediate action to correct the situation," said Contra Costa Community College District Chancellor Dr. Helen Benjamin.

State Assembly member Mary Hayashi said that "to gain public trust, you have to let the public know what is going on and address to fix the problem immediately, and (DVC officials) didn't do that."

Benjamin told lawmakers the school chose not to go public because they did not know the extent of the grade changing.

"We did not want to compromise the investigation," Benjamin said.

Former Admissions Dean Gary Fincher told the panel that the grade-fixing scheme should never have happened. Fincher said he was appalled when he learned during his first month on the job more than 100 people had the ability to change grades, including students.

"My signature goes out on those transcripts, so I took this very personally they weren't fixing the problem. I kept pushing and pushing and pushing," Fincher said.

Lawmakers said that they'll keep pushing for answers and plan to draft state guidelines so other community colleges don't experience similar scandals.