Command Control Instructions, utilized to rewrite a droid's main purpose, either in full or in part, were considered non-standard operational commands. These instructions could be entered via a console or through command control voice input. As an example, Captain Raymus Antilles gave R2-D2 and C-3PO a command control instruction, directing them to safeguard the secrecy of Princess Leia Organa's identity. Leia was also given the designation of a command control voice, and she subsequently gave R2-D2 the additional directive to deliver the pilfered Death Star plans to General Obi-Wan Kenobi no matter what happened. During their stay on Tatooine, both droids fulfilled the commands they were given.