Monsieur G —, the Prefect of the Parisian police, is a representative of the law enforcement machinery. Both his encounters with Dupin invite sharp criticism from the detective regarding the outdated procedures undertaken during the formal investigation. The Prefect acts as the spokesperson for the Lady under duress in her absence. He tries to convince Dupin that he has thoroughly searched the premises of the culprit Minister. Yet, Dupin remains unconvinced. It is so because the standard investigation by the police lacks imagination and proves ineffective. The Prefect is unable to think outside the box. His enterprise is limited to codified rules and regulations. Only Dupin can function freely and for that reason, the Prefect seeks his help.