The veteran prosecutor who led the questioning during last week’s Senate Judiciary Committee hearing said there wasn’t enough evidence to bring criminal charges against US Supreme Court nominee Brett Kavanaugh because of several key inconsistencies she found in Christine Blasey Ford’s testimony.

“A ‘he said, she said’ case is incredibly difficult to prove, but this case is even weaker than that,” Rachel Mitchell wrote in a five-page memo sent to all Senate Republicans Sunday night and obtained by the Washington Post.

The Arizona prosecutor whose life’s work has been to investigate sex crimes said the more than half-dozen inconsistencies she found based on evidence before the Senate Judiciary Committee would dissuade “a reasonable prosecutor” from bringing the case.

“Dr. Ford identified other witnesses to the event and those witnesses either refuted her allegations or failed to corroborate them,” she wrote.

In the memo, Mitchell said Ford “has no memory of key details” about the alleged assault — including exactly when it allegedly happened, what house it allegedly happened in and how she got home.

But during the Sept. 27 hearing, Ford said she was “100 percent” certain that Kavanaugh was the teen who attacked her in 1982.

Mitchell also argued that the people Ford identified as being at the gathering — Mark Judge, Patrick Smyth and Leland Keyser — haven’t been able to directly corroborate her account, though Keyser told the Judiciary Committee she believes Ford.

The Maricopa County prosecutor, who is a registered Republican, and who was hired to question Ford and Kavanaugh during last week’s hearing, said she was not “pressured in any way to write this memorandum.”

Democrats have noted that the hearing was not to build a criminal case, but something many saw as a job interview.