Leadership Clause Hexagon-13
From Tardis Wiki, the free Doctor Who reference
Leadership Clause Hexagon-13 empowered a Viyran to kill and replace the Viyran Commander if their psychology was compromised. A Viyran did this to the Viyran Commander after the latter was "infected" by the ideas of the Rogue Viyran, an action that the Commander accepted. (AUDIO: The Lamentation Cipher)