Conn. Gen. Stat. § 9-368: Arrest of accused.

Upon the written complaint of any three electors of a town in which a violation of any law relating to elections has occurred to any judge of the superior court for the judicial district within which the offense has been committed, supported by oath or affirmation that the complainants have good reason to believe and do believe that the allegations therein contained are true and can be proved, such judge shall issue a warrant for the arrest of the accused.