A municipal judge who declined criminal defendants’ requests for a public defender and then tried their case without a prosecutor — at times acting like one — is facing stinging ethics charges by the Advisory Committee on Judicial Conduct.

Louis DiLeo’s “actions transformed the role of the court from a neutral and detached magistrate and evoked the specter of the backwater ‘judge, jury and executioner’ figure that has never had any place in American jurisprudence,” the ACJC says in a formal complaint made public Wednesday.