Requirement: 2 Advances in Lore (Imperium)
The Lex Imperialis is composed of myriad inscrutable laws that keep the Imperium aloft, and you know how to wield them like a weapon — or at least have the confidence to threaten others with their execution. When you make a Rapport or Presence Test and know the target of your Test has broken some kind of law, you can reference that law to gain +SL to the Test equal to your Advances in Lore (Imperium).