queen for a day letter

noun

variants or queen for a day agreement

US law

: a letter setting forth the terms under which an informant will provide information to a federal prosecutor in exchange for limited immunity : proffer letter

In the book, Jones admits federal prosecutors offered her a "queen for a day" letter—a written agreement that would have allowed federal agents to question Jones without the risk of being prosecuted.

—Lynn Jacobsen

Word History

First Known Use

1998, in the meaning defined above