The justices tapped a non-former clerk to argue as an amicus in an upcoming case for the first time in over a decade, according to research by Bloomberg Law.

Amy Weil, of Atlanta, was invited by the U.S. Supreme Court May 25 to brief and argue a specific position in an attorneys’ fee dispute in a social security case that will likely be argued next term.

There have only been 51 other such appointments since the practice began in 1966, according Adam Feldman, who blogged about the practice in January.

Though the practice has “picked up” since...