Unlike the fictional stories where everything is possible, or will be made possible to provide a plot twist without giving accurate reasons; Detective Conan is a relief. It is based on a realistic and practical universe with closeness to reality. Most of deductions for impossible crimes are not at all fictional and can be recreated. Aoyama-sensei has put a lot of thought on the tricks and deduction.
To all the Sherlockian Deduction Freaks: this show is a must-watch!