From the introduction (page 4):

This is a transcribed interview of Tova Noel, conducted by the House Committee on Oversight and Government Reform under the authority granted to it pursuant to House rule X.

Accordingly, House rule X grants the Committee broad jurisdiction for the Committee to conduct investigations of any matter at any time.

This interview was requested by Chairman James Comer as part of the Committee's investigation into the circumstances and subsequent investigations into the crimes of Jeffrey Epstein and Ghislaine Maxwell, the operation of sex-trafficking rings and ways for the Federal Government to effectively combat them, the ways in which Mr. Epstein and Ms. Maxwell sought to curry favor and exercise influence to protect their illegal activities, and potential violations of ethics rules related to elected officials.

Note: Tova Noel received intermittent "mystery payments" from April 2018, over a year before Epstein was arrested, until the day before Epstein's death. While the FBI subpoenaed her bank records in 2019, and the DoJ-OIG* interviewed her directly pursuant to their deferred prosecution agreement with her that was finalized in December 2021, they never asked her about these payments.

In this hearing by the House Oversight Committee, the committee members did inquire into the "mystery payments" Ms. Noel received shortly before Epstein's death, but didn't get much in the way of answers.

*DoJ-OIG: Office of the Inspector General for the Department of Justice (DoJ has oversight of the Bureau of Prisons, and it is the DoJ-OIG that investigates misconduct involving prisons and BoP personnel)