As many as 400 cops could face disciplinary charges for fixing tickets in a widening corruption scandal, The Post has learned.

Two NYPD lawyers were recently transferred from the department’s legal bureau to its advocate’s office, which handles departmental trials against officers, and told to expect hundreds of cases, according to a source in the unit.

“This is huge,” said the source. “That’s a lot of cops all in one shot. I’ve never heard of something like that before, this many police officers charged in one period.”

“It was a systemic thing,” said another source familiar with the probe.

The department will charge cops internally in all 12 Bronx precincts—and possibly other boroughs—for allegedly helping out friends and family by “losing” paperwork and missing court dates. In turn, parking tickets, moving violations and quality-of-life summonses would be dismissed in court or vanish before ever getting near a judge.

Officers found guilty in department trials could get fired, lose benefits, or be reprimanded or warned.

Those who tampered with documents might face criminal charges of obstruction or filing a false instrument, while cops who took money could be hit with felonies such as bribery.

The NYPD lawyers plan to go after union delegates and fixers most aggressively, some of whom some could face criminal charges as well, the source said. Officers who simply sought favors from the fixers would likely get lighter punishment.

READ MORE: NY POST