The mayor and chief of police of a city of the primary class shall each have the power to call upon any citizen to aid in the enforcement of any ordinance or suppression of any riot, and any person who shall refuse or neglect to obey such call shall forfeit and pay a fine not exceeding one hundred dollars. Such power shall not be construed to include the appointment of special police or special deputies.
Neb. Rev. Stat. §§ 15-314