In this subtitle the following words have the meanings indicated. “Defense-related activity” means: the preparation of the United States or a state for defense or war; or the prosecution of war by the United States or a country with which the United States maintains friendly relations. “Identification badge” means a badge that a person wears to show the person’s identity or right to be in or on any premises described in § 9-704 of this subtitle. “Identification card” means a card or pass issued for the purpose of establishing the identity and the right of the person to be in or on any premises described in § 9-704 of this subtitle.