In the execution of his or her powers and duties in arresting any person accused or suspected of any crime or in the suppression of any riot or unlawful assembly, or in preventing the commission of any offense against the city or the state, he or she shall have the power, whenever the same shall be necessary, to require the aid of citizens or of one citizen, and any person who shall refuse or wilfully neglect to obey the summons of the officer in such case, shall be deemed guilty of an offense.
(Prior Code, § 32.23) Penalty, see § 10.99