Seventh Guarantee
The Seventh Guarantee of the Constitution of the United Federation of Planets protected all Federation citizens from being compelled to give self-incriminating testimony in legal proceedings. 

In 2367, Simon Tarses invoked the Seventh Guarantee while being interrogated by Sabin Genestra and refused to discuss his Romulan heritage, having been so advised by his appointed counsel, William T. Riker. During these proceedings, Captain Jean-Luc Picard warned Lieutenant Worf that they must not ignore the Seventh Guarantee, and that a man's silence cannot be inferred as an admission of guilt. ()

de:Siebente Garantie
pl:Siódma Gwarancja
Legal documents