Richard Moore was originally a colleague of police officer Mu Mu. After his resignation, he started a private detective firm. At first, he was just an unknown detective. Later, Conan's appearance won him the title of "Sleeping Kogoro". In most plays, Richard Moore's reasoning is wrong or not in place. Conan, who is carefully observed, will help him, stick an anesthetic needle around his neck and then analyze the case and draw conclusions for him. Every time a case is closed, Richard Moore wakes up and thinks it's his own case.
With Conan's help, Richard Moore became a famous detective, and his detective career also took shape. He was originally a man who lost his love career. It can be said that Conan asked him to start over. However, Richard Moore still has strength. For example, some cases, such as Kogoro's dating murder case and aerobic diving murder case, were solved by himself. When Kudou Shinichi became small, he lived in Richard Moore under the name of Conan. They are more like father and son, and they are good partners in solving crimes.
After Conan helped Richard Moore win the detective title, his cases also increased, but he easily got carried away and his reasoning was relatively rigid. In Detective Conan, only a few cases were solved by himself, so he is a veritable king of rules and regulations.