List of cases solved by Kogoro Mouri
This is a list of criminal cases which Kogoro Mouri has solved with little to (rarely) no direct intervention or assistance from Conan, fulfilling his role not as a proxy or stand-in but as an active and capable investigator.
Manga/Anime TV episodes
Volume 9, File 084-086: Kogoro's Class Reunion
(TV Title: 27-28, Kogoro's Class Reunion Murder Case, Parts 1 and 2)
With Conan drawing his attention to the facts that the victim was wearing an overly large yukata and that the estimated time of death was faked by accelerated rigor mortis through physical exertion just prior to her death, Kogoro is able to expose the culprit by himself.
Volume 17, Files 163-165: Scuba Diving Case
(TV Title: 114-115, Scuba Diving Murder Case, Parts 1 and 2)
While he is once more used by Conan as a front to solve the murder attempt case at hand, Kogoro is able to figure out by himself that his wife Eri has actually lost her wedding band (instead of just taking it off, as she claimed) and recover it for her.
Volume 37, Files 374-376: Kogoro's Choice
(TV Title: 305-306, The Unseen Suspect, Parts 1 and 2)
Upon thoroughly checking the crime scene, Kogoro immediately deduces who the actual murderer is, requiring only slight directions from Conan to counter the claims of the suspect's daughter, who tries to protect her father, regarding important clues about the murder weapon.
Volume 51, Files 525-527: Cat Sitting Case
(TV Title: 445, Secret of the Russian Blue)
By surreptitiously leaving cat treats in strategic places for Goro to lead Kogoro to important clues, Conan allows Kogoro to gradually able to piece the clues together by himself and unravel the true meaning of the message.
Volume 62, Files 643-645: Judo Champion Case
(TV Title: 528, Might Over Mystery, Parts 1 and 2)
Kogoro deduces on his own that the call from the murderer's husband was actually just a recording to fake her alibi, and has on his own part faked a recording of a Mahjong session to help his wife stumble upon that clue.
Volume 68, File 709-711: Eri's Birthday Murder Case
(TV Title: 589-590, The Worst Birthday, Parts 1 and 2)
Conan initiates a little accident with a serving wagon and some sauce, making Kogoro finally realize that the culprit used model cars to move the heavy bed in order to hide and later re-reveal the corpse of his victim.
TV only episodes
Episode 53: The Mystery Weapon Murder Case
After Conan has cracked the case and drawn Kogoro's attention to the way the victim was murdered, Kogoro works out the details of the crime quite well by himself.
Episode 150-151: The Truth Behind the Car Explosion Case, Parts 1 and 2
After Conan has roused his suspicions, Kogoro works out the identity of the culprit and the details of the crime, which included a murder plot against the perpetrator turned against its conceivers, out on his own, with Conan adding only one - but highly important - detail.
Episode 260: The Shaking Restaurant
While he did not solve the actual murder, Kogoro was able to deduce the trick for the original murder plot.
Episode 540-541: The Day Kogoro Mouri Ceased Being a Detective, Parts 1 and 2
In short order and independently from Conan, Kogoro realizes that he has become the victim of a carefully arranged deception, with the culprit having disguised himself as his prospective victim to gain an alibi. Conan refrains from interfering directly, limiting himself to drawing clues to a piece of vital evidence.
OVAs
OVA 05: The Target is Kogoro!! The Detective Boys' Secret Report
While Kogoro's intellectual and deductive skills are initially not in hard demand here, he shows true professionalism when his observation turns into a kidnapping and blackmail case, with some support from the Detective Boys.
Movies
Movie 09: Strategy Above the Depths
Because of one of the culprits' striking similarity with his wife Eri, Kogoro works all the harder to prove her innocence, only to discover her true guilt in the matter. He is only temporarily stumped off when he fails to produce a crucial piece of evidence at the time of his first revelation attempt. This is also the first case which he solves without direct promptings from Conan.
Movie 13: The Raven Chaser
By chance, Kogoro is able to deduce the location for the last planned murder from the star constellation of the Big Dipper and Polaris quite independently, if a bit belatedly, from Conan for the joint police commission.
