All officers and employees of this City, together with those citizens enrolled to aid them during a disaster, and all groups, organizations and persons who may be, by agreement or operation of law, including persons pressed into service under the provisions of Section 2.20.070 who shall be charged with duties incident to the protection of life and property in this City during such disaster, shall constitute the emergency preparedness organization of the City. (Ord. 1694 § 1 (part), 1992).