In his testimony Thursday, Kavanaugh denied ever blacking out from drinking.
A brawl ensued, prompting a call to the police. Instead, the police report shows that Kavanaugh and four others were questioned by police - but not arrested.
There were, apparently, no arrests, and no charges filed.
The revelation nonetheless adds to an emerging portrait of Kavanaugh that contradicts the testimony he gave to United States lawmakers last week.
Christine Blasey Ford, a California college professor, has alleged Mr Judge was in the room when a drunken Mr Kavanaugh allegedly sexually assaulted her when they were teenagers in the early 1980s. "That's pretty much where we are and I don't see this going any further with the New Haven Police Department".
Although the committee on Friday approved Judge Kavanaugh's nomination, it was conditional on a new inquiry into what it said were the "credible allegations" facing him.
The person familiar with Ramirez's questioning, who spoke to The Associated Press on condition of anonymity, said she also provided investigators with the names of others who she said could corroborate her account.
Judge Kavanaugh's behaviour at Yale is under the spotlight, with Prof Ludington and Mr Dudley among several of his classmates who have recently spoken out. We've gone from unfounded allegations that he was a gang rapist to reports in the "newspaper of record" about Kavanaugh once allegedly throwing ice.
What do they have to do with Kavanaugh?
"I have been contacted by numerous reporters about Brett Kavanaugh and have not wanted to say anything because I had nothing to contribute about what kind of justice he would be".
Ludington said that he felt Kavanaugh at the hearing had "mischaracterized the extent" of his drinking. While Ludington maintains that Kavanaugh was belligerent when he was drunk, another of Kavanaugh's former roommates, Dan Murphy, argued the opposite in a recent statement, at least in regard to women.
Many weighed in with variations on what was perhaps the obvious gag given Kavanaugh's stated taste for beer. "He drank heavily. He was a partier". He intends to take his information to the Federal Bureau of Investigation on Monday morning, but it's not clear those investigating the Supreme Court nominee will be interested in hearing it.
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