During the reassembly of Lore in 2364, Data confided with Doctor Beverly Crusher on the location and use of the deactivation switch. (TNG: "Datalore" ) In 2365, Ira Graves tried to work out where Noonian Soong would have positioned the switch when told by Data of its existence. (TNG: "The Schizoid Man" ) Commander William T. Riker used the switch in a demonstration to prove that Data was only a machine and nothing more. (TNG: "The Measure Of A Man" )