A Brooklyn federal prosecutor and judge at a closed hearing appeared to agree with a defense claim that Long Island terrorist-turned-informant Bryant Vinas was the person most responsible for the demise of al-Qaida, according to a transcript released Thursday.

Vinas, 34, of Patchogue, began cooperating after his capture in Pakistan in 2009 and is scheduled to be sentenced next week. At a pre-sentencing hearing on April 20, defense lawyer Steve Zissou claimed that information from Vinas was the “proximate cause” of the defeat of al-Qaida as a fighting force.

Afterward, in a closed session to discuss classified matters, U.S. District Judge Nicholas Garaufis, who will sentence Vinas, asked prosecutor Richard Tucker if he disputed Zissou’s assessment. “As a practical matter, probably not, your honor,” the prosecutor responded.

Later, the judge discussed in general terms sensitive classified information about Vinas that only he — not the defense — has been allowed to see. “Everything that Mr. Zissou said reflects what’s in this redacted material,” Garaufis said, according to the transcript.

advertisement | advertise on newsday

In one passage, the judge discussed questions the defense had asked the government about the consequences of Vinas’ cooperation — including a question about whether his information had assisted in the “capture or death” of al-Qaida leaders Osama bin Laden or Ayman al-Zawahiri.

The government’s answer was no, Garaufis said.