In any suit brought under the ordinances of the city upon the complaint of a person other than the Chief of Police or some other city officer and which suit is dismissed as trivial or frivolous, the suit shall be at the cost of the person making such complaint. When it appears to the satisfaction of any police magistrate that there are good grounds for believing that a suit is trivial or frivolous, and that the party complaining is not legally responsible for costs that may be expended in its behalf, the justice of the peace or police magistrate may demand security for such costs, in the event that such suit is dismissed, or may require that the party complaining deposit in advance the costs of issuing the necessary writs of making the arrest.
(1960 Code, § 1.13)