In 2152, the crew of the Enterprise managed to isolate Captain Archer's biosignature, confirming that he had not become a casualty of a conflict between Andorians and Vulcans on the surface of a contested planet. (ENT: "Cease Fire") In 2154, Shran's crew was able to locate Ambassador Soval aboard Enterprise by isolating Soval's biosignature for the purpose of abducting and torturing him for information on Vulcan fleet deployments. (ENT: "Kir'Shara") The USS Enterprise also monitored life signs of crew in environmental suits undergoing space dives. (Star Trek; Star Trek Into Darkness)