Article 15 of the Shadow Proclamation

The Article 15 of the Shadow Proclamation, (TV: The Christmas Invasion) also spelt Article Fifteen of the Shadow Proclamation, dealt with murder not being a rule of war.

The Twelfth Doctor tried to invoke this article to a Ba-El Cratt. (PROSE: Diamond Dogs)

Rose Tyler addressed the Sycorax according to it when attempting to speak in the Tenth Doctor's place. (TV: The Christmas Invasion)