U.S. officials interviewed convicted sex trafficker Ghislaine Maxwell while her legal team awaits a Supreme Court decision on her 20-year prison sentence appeal.

A senior administration official confirms to NBC News that Ghislaine Maxwell was granted limited immunity by the Justice Department in order to answer questions about the Jeffrey Epstein case. This type of immunity allowed Maxwell to answer questions from Deputy Attorney General Todd Blanche without fear that the information she provided could later be used against her in any future cases or proceedings.

The disgraced British socialite, wearing all brown, was handcuffed in the front and led through a barbed-wire-laced fenced-in area in front of the prison.

Ghislaine Maxwell offered to testify before Congress about Epstein in exchange for immunity, advance questions, and a delay until her legal appeals concluded.

The Justice Department’s No. 2 official has met with Ghislaine Maxwell, the imprisoned former girlfriend of financier and convicted sex offender Jeffrey Epstein.