A provision of the Federation Constitution that protects a person from being forced to incriminate themselves, invoked by Crewman Simon Tarses during Admiral Satie's hearings aboard the Enterprise-D.
The Seventh Guarantee is one of the fundamental rights set out in the Constitution of the United Federation of Planets. It allows anyone under questioning to decline to answer when the answer might be used against them.
It features in the Next Generation episode The Drumhead. When Admiral Norah Satie's investigation into an explosion aboard the Enterprise-D turns into a hunt for traitors, medical technician Simon Tarses is pressed about his Romulan grandfather and, on Commander Riker's advice, refuses to answer under the Seventh Guarantee.
Satie treats the refusal as an admission of guilt. Picard argues that the guarantee is one of the most important rights the Federation possesses and that using it against a man turns the law on its head, a stand that leads Satie to summon Picard himself.