"The Great Detective" typically refers to Sherlock Holmes, a fictional detective created by Sir Arthur Conan Doyle. Holmes is known for his keen observation skills, logical reasoning, and use of forensic science to solve complex cases. He often collaborates with his friend and chronicler, Dr. John Watson, who narrates many of their adventures. Set in Victorian London, Holmes operates from his residence at 221B Baker Street. His character has become iconic in literature and popular culture, inspiring numerous adaptations in film, television, and theater. The stories often explore themes of justice, morality, and the intricacies of human behavior.