Jeffrey Epstein had “suicidal tendencies” and other “mental concerns,” according to newly released documents that also include the financier’s final mug shot before his jailhouse suicide.

New details of the federal probe into Epstein’s alleged sex-trafficking conspiracy were among 70 pages released by the Department of Justice and US Marshals Service as part of a Freedom of Information Act request. The files were uploaded to nonprofit website Muck Rock, which publishes FOIA requests, on Friday and confirmed by The Post as having been released by the Marshals Service.

Epstein was deemed to have “mental concerns,” specifically “suicidal tendencies,” following his July 8 arrest, according to a custody and detention report by the marshals.

The documents also list the 66-year-old as a self-employed “banker” and include copies of his American Express credit card, Florida- and US Virgin Islands-issued drivers licenses and UnitedHealthcare and Medicare cards.

A never-before-seen mug shot of Epstein was also attached to the files — showing the serial pervert looking grim-faced, haggard and balding.

Meanwhile, in July, an air-traffic controller told investigators that she had witnessed Epstein getting off his private plane “two specific times” with girls “who appeared to be” 11 to 12 years old “with white skin,” according to the documents.

She noted another occasion when she saw Epstein with a mixed-race girl who looked between 16 and 18 years old.

Both sightings took place sometime between June and November 2018 and the airport worker said she used binoculars to view the scene, the redacted filing said.

Federal agents also spoke with an unidentified investigative reporter for the Miami Herald in Florida in late June. The journalist told them that her “informants” included an airport employee, as well as a woman who worked for Epstein at his home for one week. The woman’s boyfriend still worked for him and agreed to try to arrange an interview with the agents, the redacted notes said.

Epstein hanged himself in his cell at the Metropolitan Correctional Center in Manhattan on Aug. 10. He was accused of sexually abusing multiple young women between 2002 and 2005.

A registered sex offender in New York and the US Virgin Islands, he served a 13-month sentence after pleading guilty to procuring an underage prostitute in 2008. The controversial sweetheart plea deal ended a federal case into Epstein’s alleged sexual abuse.

With wires