The U.S. Court of Appeals for the District of Columbia Circuit cited the 1876 poem, “The Hunting of the Snark,” in ruling that the military improperly labeled a Chinese Muslim as an enemy combatant.

The government insists that the statements made in the documents are reliable because the State and Defense Departments would not have put them in intelligence documents were that not the case,” the court wrote. “This comes perilously close to suggesting that whatever the government says must be treated as true.”

The judges compared the argument to the logic in Carroll’s nonsense poem, in which a hapless crew hunts for a creature that is never quite defined. The Bellman, the ship’s leader, led his men across the ocean, guided by a map that was just a blank piece of paper. He rallied and reassured his crew simply by repeating himself.

“I have said it thrice: What I tell you three times is true,” the Bellman says in the poem.