Supreme Court nominee Ketanji Brown Jackson doled out a lenient sentence to a child rapist for violating probation — and he allegedly struck again during the time when prosecutors wanted him locked up, The Post has learned.

The Biden nominee’s handling of sex offender Leo Weekes’ case emerged in a tranche of court filings and transcripts sent to the Senate Judiciary Committee Friday — just days before the panel is set to vote on whether to report her nomination to the full Senate. //

During Jackson’s confirmation hearing, the Biden administration gave the Judiciary Committee information on seven cases in which she had sentenced defendants to terms below what prosecutors and probation officers had requested.

The Weekes case — which was revealed just days before the Senate is expected to confirm Jackson to the highest court in the land — was not among them.

“At [Jackson’s confirmation] hearing, senators rightly raised concerns about the consequences of light sentences for sex offenders,” the Republican Judiciary Committee aide said. “As this case sadly illustrates, those concerns aren’t theoretical.

“Had the judge imposed the sentence recommended by the government, this child rapist would have been behind bars when he sexually assaulted another family member. Judge Jackson’s personal policy preferences steered her judgement.”

“Judge Jackson is endorsed by the Fraternal Order of Police, the International Association of Chiefs of Police, over 60 sheriffs and police chiefs leading many of the largest and busiest departments in our nation, and 83 former state attorneys general from both parties – as well as a coalition of anti-sexual violence advocates and survivors,” a White House official told The Post Sunday evening. “She has answered the most questions for the record of any Supreme Court nominee in history and has provided thousands of pages of documents to the Committee, including about her decisions – all of which are public record.” //

Defenders of Jackson have argued her sentencing record is irrelevant, since criminal cases rarely come before the Supreme Court. Republicans and conservatives have countered by noting that such cases make up the bulk of Jackson’s record, since she has served just 10 months on the DC appeals court.

During her confirmation hearing, Jackson responded to criticism of her sentencing record by insisting that federal guidelines needed to be reformed by Congress, which did not sit well with Senate Majority Leader Mitch McConnell.

“It was not reassuring to hear Judge Jackson say that if senators want her to be tough on crime, we need to change the law, take away her discretion and force her to do it,” he said March 24 in announcing his opposition to her nomination.

“That response seems to confirm deeply held personal policy views seep into her jurisprudence, and that is exactly what the record suggests.”