(70 ILCS 2205/25) (from Ch. 42, par. 271)
    Sec. 25. The board of trustees shall have power to appoint and maintain from time to time, such police force as it may find necessary for the protection of any levee, ditch or other improvement authorized by this act, or otherwise in furtherance of the purposes for which such district is organized. The members of such police force shall have and exercise like police powers to those conferred upon the police of cities: Provided, that such police, when acting within any city or village, shall be subject to the direction of the police officers of such city or village.
(Source: Laws 1907, p. 289.)