sule 66RULE 66-QUO WARRANTO. Rule 66. Literally means by what authority Quo Warranto is a special civil action to determine the rht to the use and exercise of a public office or franchise,Sec. 1, Rule 66 of the Rules of Court defined Quo Warranto as an action for the usurpation of a public office, position or franchise that is commenced by a verified petition in the name of