Police lieutenants and other troopers in the now-defunct Troop E coordinated to make their overtime schemes work better, according to a convicted state trooper who’s pointing fingers, court filings say.

Federal prosecutors filed a memo this week in the case of Daren DeJong, a convicted trooper who was supposed to be sentenced May 2 — before the U.S. Attorney’s prosecutors dropped the bomb that DeJong has been working with Massachusetts Attorney General Maura Healey’s office in a parallel probe of what’s become known as “Troopergate.”

“Defendant DeJong admitted to Massachusetts Attorney General’s Office investigators that he had engaged in AIRE overtime abuse in coordination with other members of Troop E via phone and/or radio communication,” the memo stated, referring to the Accident and Injury Reduction Effort program. Per the document, DeJong said he and troopers would scheme to go home on days with bad weather, not attract attention by stopping cars on other days and sometimes write tickets in advance of overtime shifts.

The now-retired DeJong, 57, of Uxbridge, pleaded guilty in January to embezzlement from an agency receiving federal funds — making him one of eight troopers to be convicted in the overtime scandal.

Responding to an order from a federal judge to address the sudden revelation that DeJong is working with state prosecutors, the feds wrote that the day after the May 2 hearing, the AG handed over new information saying that Healey suspects DeJong worked with a yet-unidentified ‘MSP Lieutenant A,’ who is responsible for about $18,000 in fake overtime in 2015 and $10,000 more in 2016. Further, Healey’s office told the feds the AG has pursued charges against two other former lieutenants who caused about $11,000 and $5,000 in bad overtime spending in 2015 and $19,000 and $17,000 in 2016, according to the memo.

The AG in December indicted three state police lieutenants. DeJong’s cooperated in April.

Federal prosecutors said they aren’t requesting a further delay in sentencing but DeJong will be asking the courts to wait until at least June. The memo says the defense will oppose any move to add these new dollar figures to the amount being considered as the judge mulls his federal sentence.

Defense attorney Brad Bailey told the court during the initial sentencing hearing that his client responded to the state’s request for help and met with detectives and attorneys from Healey’s public-corruption unit in April even though they were assured DeJong is not a target. DeJong also has indicated he’s open to working with the feds.

Bailey declined to comment when reached by the Herald on Thursday.