|This is a featured article on the Detective Conan Wiki. This article was featured on August 11, 2011|
|Japanese name:|| 服部 平次|
|English name:||Harley Hartwell|
|Date of birth:||Unknown date in July or August|
|Relatives:|| Heizo Hattori (father)|
Shizuka Hattori (mother)
|Nicknames:|| Hei-chan (Otaki)|
"The Great Detective of the West"
Detective Freak (Kazuha)
Dark skinned man (Conan)
Osaka boy (Kogoro)
|First appearance:|| Manga: File 92|
Anime: Episode 48
|Appearances:|| Chapters: 153|
|Cases solved:||1000+ (Including the cases of lost cats when Heiji was a kid.)|
|Keyhole number:||Volume 10|
|Japanese voice:||Ryo Horikawa|
|English voice:||Kevin M. Connolly|
|Drama actor:||Tori Matsuzaka|
Heiji Hattori (服部 平次 Hattori Heiji), also known as Harley Hartwell in the Funimation dub, is an Osakan high school detective in the manga and anime series Detective Conan. He is a childhood friend and the romantic interest of Kazuha Toyama. Originally a rival to Shinichi Kudo, Heiji has since found out Conan's true identity and the two often team up to work on cases. He was the first person to find out Conan's true identity himself.
Heiji is a high school detective, and the son of Heizo Hattori, chief of the Osaka Police Department, and his wife Shizuka Hattori. Heiji wants to be a detective like his father, and he is also very skilled in kendo and has become a favored tournament contender for his school.
At one time during their childhood, Heiji had had the unfortunate idea of locking himself and his friend Kazuha together with a set of old handcuffs which had no key to unlock it; as a result they involuntarily had to spend time together even on some rather intimate occasions (i.e., bathroom visits) before the cuffs could be removed. As a reminder of this 'closeness' and for good luck, Kazuha fashioned two identical lucky charms, each incorporating a chain link from the cuffs, which she and Heiji have been wearing ever since.
In the news, Heiji has been publicly declared the "Great Detective of the West", while Shinichi Kudo is the "Great Detective of the East". As a result, Heiji showed up unannounced at the Mouri Detective Agency looking for Kudo, seeking to challenge his rival to a showdown of wits. (In fact, they had such a contest before, three years previously, during a skiing trip in the Yamagata prefecture, although they never learned about each other's identities at that time.) Heiji was soundly defeated in the following case after Conan Edogawa temporarily turned back into Shinichi, but he gained a lot of respect for Shinichi in the process..
During their second encounter, Conan knocked Heiji out to solve the on-going case, but during his final presentation of the facts, Heiji awoke prematurely and discovered Conan's secret, and in the end managed to blackmail Conan into revealing all.  Ever since that revelation, Heiji has been helping Conan in hiding his secret identity, though he constantly slips up by calling him "Kudo" in front of Ran and Kazuha.
Heiji and Conan most often congenially team up to solve assorted cases. Heiji has also helped Conan investigate the Black Organization on several occasions, such as when the two investigated Jodie Starling , or when Heiji investigated Eisuke Hondou on his own and then told Conan his findings. He's also helped cover for Conan during several of the brief instances where Conan regained his true adolescent age, and has even disguised himself as Shinichi on several occasions in order to protect his identity, even though he is not very good at it (mostly owing to his distinctive Kansai dialect). When not working on a case, he regularly attempts to invite Conan to take in the sights and culinary delights in Osaka, which he considers more wholesome than Tokyo's.
Even while solving a case, Heiji tends to be lighthearted and good-humored, preferring to work through it with a grin on his face. He is a big fan of baseball, and is most of the time shown wearing an Osaka cap, to support the local Osaka baseball team. He usually wears his cap with its visor pointed backward, but if he feels challenged, he turns the visor forward.
Heiji is known for his pride as an Osaka citizen and for his thick Osakan accent, which has been pointed out and sometimes made fun numerous times. However, Heiji holds his head high and is always one to brag about the greatness of Osaka, especially when Conan comes to visit.
Despite him knowing the value and necessity of remaining calm in the face of a crime, Heiji tends to be impulsive at times, which tends to cloud his judgment a little. This was discussed directly in the "Detective Koushien" case, when Saguru Hakuba accused Heiji of being a poor detective for disrupting a crime scene in his rush to see if the victim could still be saved. Heiji, however, solved the case in the end, and reminded Saguru that the detective's first job is to prevent death if he can. Heiji is also known to be extremely protective of those he values as close friends, and tries hard to keep them out of harm. There are several instances where Hattori tells Kazuha to wait for him or leaves her behind in order to keep her from being involved in cases, simply because he's afraid of her getting hurt.
Furthermore, he's pretty much always watching Shinichi's back, and does whatever he can to not only keep Shinichi safe, but to keep his identity under cover. However, on one occasion Heiji advised Conan to tell the truth, when Ran had convinced herself that Conan was Shinichi and thus willingly gave him blood after being shot.
Although he is very competitive when it comes to detective cases, when a case gets hot, he and Shinichi work effectively together. During Shinichi's first return to his high school during the play performance, Heiji let him take the lead role in the investigations, saying it was because they were in Tokyo, Shinichi's turf.
Although he frequently mocks Kazuha for her superstitions and enthusiasm for good-luck charms, Heiji has several times revealed that he puts more trust in them than he would admit. He once dreamed of Shinichi being murdered, and out subsequently insisted that Conan wear his omamori, the good luck charm Kazuha gave him. The omamori ended up saving Shinichi's life by deflecting a knife blow, but Heiji, without his usual protection, was shot in the stomach. In another case, Ran hung a teruterubozu, a charm that's supposed to ensure good weather, in the window so that Conan would have good weather for his field trip the next day. Heiji, however, got up in the middle of the night to take down the teruterubozu so that Conan's field trip would be rained out and he could accompany Heiji on an investigation of the The Red Horse Among The Flames.
Heiji has dark brown, spiky hair and dark skin, and his eyes are normally dark green in the anime but are drawn as blue in the manga. He speaks with a strong Kansai Ben accent, which is typical of the Osaka region. Since Heiji is so strongly accustomed to this accent, his lingual habit can be a disadvantage at times, especially when he has to impersonate someone who uses standard Japanese.
 Detective skills
Heiji's detective skills are same as Shinichi's. Because of his skills, Heiji has acquired his nick name "The Great Detective Of The West". Like Shinichi, He has a keen eye for details, and can spot any unusual aspects in a case that most people tend to ignore or not take into account and has extraordinarily broad and deep knowledge of many subjects and trivia that help him solve cases. He repeatedly demonstrates the ability to recall every detail of an investigation, and may have a photographic memory to manage such perfect recall so consistently. Heiji's fastidious attention to detail allows him to notice minor inconsistencies in crime scenes and suspect testimony. However, unlike Shinichi, Heiji seem to be more competitive and hot-blooded while solving a case.
 Eidetic memory
Like the other 'geniuses' of Detective Conan, Heiji has shown himself to have an eidetic memory, capable of remembering complex letter and number sequences at only a glance, such as when he was able to solve a code in his head during the "Heiji and Kazuha in Grave Danger" arc, and even reproduce another message using the same code to text to Conan.
 Athletic Ability
As Shinichi is to soccer, so is Heiji to kendo. He's the fifth position, or taisho, and captain of his high school Kendo team. Heiji may disable criminals using an improvised bokken similar to how Shinichi uses his soccer skills.
Heiji is also very nimble. He can jump higher than a bookshelf, and balance perfectly on a katana. This is shown in episode 263 of the anime, when Kotegawa trys to kill him.
Heiji is also a capable motorcycle driver. He also speaks fluent English.
 Plot overview
Main Article: Heiji Hattori Appearances.
 The Great Detective Of The West (Episodes 48-49)
One day, Conan (using his Voice-Changer Tie to imitate his old voice) calls Ran to tell her once again that he is all right and that he is still stuck with the 'special case' when Ran hangs up on him as someone has just entered the detective agency. Coming home, Conan finds to his surprise that the 'customer' is a youth who keeps demanding to see Shinichi Kudo. When Ran mentions that Shinichi has just called, without asking about Ran's state, the youth deduces that Shinichi must actually be nearby, watching Ran from afar. He then introduces himself as high school detective Heiji Hattori and presents a gift, a bottle of baijiu, of which he gives Conan a swig. Just then, Kimie Tusjimura, the wife of a known diplomat, enters Kogoro's office to ask him to investigate the girlfriend of her son. In order to be inconspicuous, Kogoro takes Ran and Conan along, and Heiji, hoping to flush out Shinichi, tags along as well. What is originally meant to be a simple investigation job turns out to be a murder case, as they find Kimie's husband slain at his desk.
 Finding the One Truth
After this first case, it only takes one more run-in with Conan to get Heiji thinking about the similarities between Conan and Shinichi. It is on the "Holmes Freak Murder Case" that Heiji, despite professing a preference for Ellery Queen, exercises the Holmesian axiom: "When you've eliminated the impossible, whatever remains, however improbable, must be the truth." In addition, after Conan had knocked him out to use him as his mouthpiece to present his evidence, Heiji receives a clout on the head from Kogoro Mouri, which wakes him up again, and from the corner of his eye he spies Conan standing behind him and using his Voice-Changing Bowtie to mimick his voice; he thus discovers Conan's secret, which forces Conan to explain his situation.
 Fast Friends
On their third case together, Conan was initially irritated to see Heiji, but they quickly formed a strong team. Together they cornered the murderer and even took steps to preventing the suicide she had planned. When she realizes that she won't be able to kill herself she weeps piteously, causing Heiji to whisper to Conan, "perhaps we should have let her die." Conan replies that "a detective who corners a murderer with logic and then lets them commit suicide is no better than a murderer."
Although Heiji seemed to laugh this off at the time, soon after he invites Conan (and Kogoro Mouri and Ran Mouri, because otherwise it'd look suspicious) to Osaka. It is revealed by Kazuha Toyama (in her first appearance) that Heiji has been talking about 'Kudo' so often that Kazuha thought 'Kudo' was his new Tokyo girlfriend. Heiji suggests that the reason he invited Conan to Osaka is because he has been worried about Conan's safety; he has had dreams of Conan being murdered. On a case together in Osaka, Heiji gives Conan his omamori, which ends up saving his life by deflecting a knife thrust. However, without it Heiji is injured while trying to prevent the murderer from committing suicide. In the ambulance, he reveals to Conan that he has taken to heart Conan's admonishment.
 A Friend in Need
Since that time, Heiji has quickly grown to be one of the people that Conan/Shinichi trusts most. Heiji has helped Conan investigate the Black Organization, including Jodie Starling, has disguised himself as Shinichi on multiple occasions to protect his identity, and has, perhaps most importantly, become Conan's closest friend and confidante.
 Invitation to Osaka
Heiji invites Conan, Ran, and Kogoro on a sightseeing tour on Osaka. While there they meet Heiji's childhood friend, Kazuha Toyama, but new acquaintances are quickly forgotten when the team comes head-to-head with the third and fourth victims of a serial murderer. The Congressman is the main suspect, but can evidence be found showing his innocence or guilt? A careful study of the victims' driver records reveals they all attended the same driving school. Heiji is the first one to learn of this and decides to confront the Congressman about it. Meanwhile Conan rejoins Ran and Kogoro only to be swooped away to a hidden shack where a serial killer is believed to be, but with a photo of the driving record and the testimony of the serial killer it appears two mysteries are about to be solved.
 A visit to Tokyo
Heiji and Kazuha visit Tokyo accompanied by Kogoro, Ran, and Conan. They run into Heiji's father's friend and are invited to their mansion. There a murder occurs and his father's friend is found dead in a locked room. It seems he was dragged to another room after being stabbed in the heart. Continuing the investigation, Heiji proclaims the butler was the murderer and he is taken away, screaming his innocence. Late that night, an unknown man takes the murder weapon and tries to place it in a bag, but is caught by Heiji and Conan who reveal that they placed the blame on the butler to lure out the true culprit. The culprit is revealed to be Kikuhito Morizono. He reveals that he murdered the man because he tried to cancel the wedding and take his love away from him
 The Night Before the Wedding Locked Room Case
 The Symphony Serial Murder Case
 Tottori Spider Mansion Demon
Kogoro and Heiji are hired to solve the case of murders in a mansion deemed the spider god. Heiji and Kazuha found the American named Robert Taylor who's a photographer. Apparently, the spider god's victims are always found hanged. Afterwards, they find a man hanged. The case continue and Conan and Heiji investigate further in the case. Conan and Heiji cooperate to reveal the murderer's identity and his trick.
 The third choice
Ran is cast in a school play, while discussing the play with her friends, Conan shows up wearing a face mask due to a cold he had when a man falls dead, seemingly by potassium as revealed by a young man in the audience who seemingly turns out to be Shinichi Kudo, but is quickly revealed by Kazuha to be Heiji in disguise.
 The Client Full Of Lies
A woman named Shizuka Ikenami asks Kogoro to help find a man named Shiro Shibata so she could retrieve an old photograph; Conan realizes that the Ikenami is lying to Kogoro when she introduces herself for unknown reasons. After Conan solved the case, Heiji and Kazuha arrive and reveal that Shizuka Ikenami is actually Heiji's mother. Shizuka confesses and tells Kogoro that she wanted to see what kind of person he was since Heiji was injured the last time he stayed over.
 Visit to mermaids
Heiji along with Conan, Ran, and Kogoro visit the Isle of Mermaids looking for Saori, who had sent a letter to Heiji and Kogoro asking them to save her from being killed by a mermaid, but when they try to look for her she has been reported missing. Conan and Heiji investigate the area and history of Mermaids Grave, a forest on mermaid island. They learn that an elder who is over 130 years old is a holder of the arrow and the head of the festival. While investigating three murders occur. Conan reveals to Heiji he knows who the murderer is and to meet him later, but later he and Kazuha fall off a cliff but later it seem that Heiji had saved both him and Kazuha.
 3 "k"s of Osaka
At the Mouri Detective Agency, Conan is on the phone talking to Heiji about the restaurant's opening party. Heiji's parents got invited but they both got colds and can't go. Heiji decides to invite Conan, Ran, and Kogoro to come to the party. Three famous athletes from America are going to be there also. Once Heiji told Conan who the three athletes are, Conan accepts the invitation. Suddenly, the news reporter named Ed McCay who was invited to the K3 Restaurant asks that isn't Japan the home of many scandals, and mentions that K stands for "kitanai" meaning filth. Heiji wonders who he is and Kogoro knows that Ed McCay's famous in America. He's a reporter that specializes in exposing famous athletes' scandals. He exposes the athletes taking illegal drugs, playing fixed games, and having affairs. Ed McCay later gets murdered, but Heiji and Conan solves the case.
 Heiji's jealousy
Heiji invites Conan to his kendo tournament but a drunk man named Atsushi Tarumi is found dead in the storage room. Heiji comes to investigate only to find that the body had somehow been moved to the shower room without anyone noticing. While Heiji was investigating, Kazuha suddenly appears asking Heiji to come back and take part in tournament and told him that Shinichi (Actually Conan, with whom Heiji was talking using the name "Kudo") would solve this case before him, which made Heiji jealous and he told Kazuha to not to tell anything about this case to Kudo. After a thorough investigation, Heiji reveals the culprit before Shinichi. However, in the end Heiji's high school lost tournament because of absence of Heiji but he seem to be happy because he won his duel against Kudo. After culprit is arrested, Heiji and Conan explore the town.
 English Teacher vs Great Western Detective
While at the Agasa's, Conan recalls his last meeting with the Black Organization. Conan deduces that another Black Organization member must have been at the hotel party. This is when he finally singles out Chris Vineyard as his suspect. Heiji came to Tokyo to help Conan out with the case. Heiji suspects Jodie-sensei of being a possible Black Organization member, and although Conan seems reluctant to this idea, they pay Jodie-sensei a visit at her apartment. They find out here that her full name is "Jodie Saintemillion". After Jodie agrees to go out for a while with Heiji and Conan, the man living next door to Jodie falls dead outside from over 30 stories, coincidentally as the three are outside. After the police arrive, it seems likely that the man committed suicide. However, Conan and Heiji have a different idea. Heiji immediately destroys the theory of suicide, by showing that the man who fell from his apartment attempted to grab onto the curtain to save his life. Conan and Heiji reveals the truth by showing how the room was switched around. After they solves the case, Heiji asks Jodie that who is she. In reply, Jodie asks the same question to Heiji. When Conan and Heiji leave, concur that Jodie is someone suspicious, but believe that she is innocuous. The ending scene shows that she's already on to them in that Jodie's already knows Heiji's name and has pictures of Kudo during the time he regressed back to his former self.
 Visit to Solitary Island of the Princess
 Heiji Hattori's Desperate Situation
Heiji, Kazuha and a man named Kasukawa are held hostage in an attic of someone's home. Meanwhile, Conan, Ran, and Kogoro are tired of waiting for the two and begin searching for them based on clues from the last phone call. They investigate Detective Kasukawa's home and discover evidence that Heiji had been there. Conan finds a memo which discloses Kenbashi City, Ito Residence. They investigate those with the surname Ito but are unable to find information about Heiji. Meanwhile, it is revealed Heiji is held hostage by Misari Ito, an attorney who is the head of a tax evasion group. Ito demands Heiji to solve a code made by Kasukawa which contains a seven-digit-code to a safe box containing evidence of her scandal. While held at gunpoint, Heiji sends a modified version of the code to Kogoro and asks him to solve it. Conan manages to solve the code, realizing that K, Q, and J stand for King, Queen, and Jack and replaces them with numbers accordingly. When Heiji receives the code back from Kogoro, he tells Misari he will tell her the seven digits and they head to the bank. Conan realizes the last three digits are actually letters and realizes what Heiji is trying to tell him and replies a modified code. Heiji tells Misari Ito he will tell her the seven digits and they head to the bank. Heiji reveals that the numbers, if placed in a 3 by 3 diagram, will create a diagram of a dice with the 1's representing the dots on a dice. Heiji reveals that the code he sent Kogoro had the letters LIB meaning Libra which is referring to the scales Libra and the attorney badge Ito has; He explains that the code "Kogoro" replied with means to "Lure One of them Out". At Ito's home, Conan knocks out the two kidnappers and frees Kazuha. The police arrive later and apprehends the criminals.
 Relationships analysis
 Family & Friends
 Kazuha Toyama
Heiji's relationship with Kazuha is a very close one; they were childhood friends, and have stayed close through the years. Their relationship is identified as a romantic one by other characters and fans alike, even though they claim that they don't have that sort of relationship or feelings for each other. Heiji is clueless when it comes to love and has not yet realized he has actual feelings for Kazuha. However, it has been shown that he becomes visibly jealous when he sees Kazuha with other guys, becoming distracted throughout the whole case. At one point, after a certain case, while looking at Kazuha, his thoughts read: 'Fool. You're too naive. I promise you, as long as you're with me, I'll never let anyone hurt you.'. Kazuha knows she has feelings for Heiji, as she shows this by being protective and chasing off other women that might have a interest in him In on of the mangas Kazuha attempts to confess her feelings after finding out that Ran had done so with Shinichi, but is unlucky because by telling him, Heiji ran off to tease Shinichi for it. She one time even attempted to sacrifice herself to save Heiji during a case that they accidently both fell off a cliff, and when they were both hanging on the branch Heiji was holding was breaking so to prevent him falling she stabbed him hand with an arrow of love to force him to let her fall, however he still held on despite a wounded and bloody hand. Also, they have the same situation as Ran and Shinichi, being childhood friends that have romantic feelings for each other and have the same background as them. Heiji is a teenage detective and she is a police's daughter, like Ran is a police's daughter and Shinichi is a teenage detective. They are even called the 'Ran and Shinichi of Osaka' by fans of the series, since they're so similar. Although they are constantly fighting, they both are very close friends. It is also shown in the seventh movie, Crossroad in the Ancient Capital, that Kazuha is Heiji's first love, though he didn't know it was her at the time.
 Shinichi Kudo/Conan Edogawa
Heiji acts rather brotherly towards Shinichi, even going so far as to pretend to be him on various occasions, so no one figures out that Shinichi and Conan are the same person. Of course, this might also be to make up for all the times Heiji calls him Kudo, which has nearly given Shinichi away multiple times. Heiji can be a little bit worried for Shinichi when he gets into trouble and in a life or death situation. They are as close as real brothers, both being detectives who have feelings for their childhood friends. When they're caught solving a case together, it's not unusual for their minds to move in sync; because of this and several other factors, they maintain a sort of friendly rivalry with each other. However, they are both all business when a case gets serious. Heiji has, on several occasions, declared himself to be Shinichi's best friend.
 Ran Mouri
Heiji acts brotherly toward Ran, at some occasions he even called her sister ("Neechan" in Japanese). Ran respects Heiji as a very skilled detective who reminds her of Shinichi but whenever Heiji and Kazuha run into an argument, Ran seems to take Kazuha's side. Despite this, they have become good friends.
 Heizo Hattori
Heiji wants to become a detective, and his father is very supportive of this, helping him solve tough cases. However, his father prefers a "tough love" approach, though mostly for the sole purpose of using Heiji to lure out a suspect.
 Shizuka Hattori
Shizuka is Heiji's mother and he sometimes called her mom an "old lady".
 Kogoro mouri
Kogoro respects him a little as a detective, but due to Heiji being the better detective, he seem to get annoyed whenever Heiji is with him while solving cases.
 Goro Otaki
Otaki and Heiji are very good friends.
 Juzo Megure
Usually Megure gets a little annoyed whenever Heiji runs into a case he is handling. He often tells Kogoro to not to loose to a outsider like Heiji. Despite this, Megure respects Heiji as a very skilled detective, he even declared Heiji as a better Detective then Shinichi.
Heiji has been shown to receive the most amount of Injuries out of the characters in the franchise. not including the numerous times Conan has been hit by Mouri. His so far are:
10.2-6 Heiji and Conan's head collide, raising bumps.
12.7-10 Heiji and Conan's head collide, raising bumps.
19.8 Shot in the belly by Detective Sakata
23.4-9 Hit over the head and tossed overboard into the ocean
25.4-8 Kazuha slaps Heiji after he bursts into her room demanding she take her clothes off, then attempts to assist her in doing so.
28.6-10 Right hand stabbed by Kazuha with an arrow while dangling off a Cliff. (31.8 mentions this scar as given to him 'last year')
31.8 Kazuha nails him on the back of the head with something, raising a bump.
31.8 Scar behind the left ear from last year's Oyodo competition. Given to him by Okita when he was unable to stop Okita's 5-step attack. Match was stopped because his neck wouldn't stop bleeding until a doctor tended to it.
31.10 Shallow Cut to left cheek with a Katana by Kotegawa Takashi
31.11/32.1 Heiji's father punches him in the face, sends him flying.
38.8-10 Handcuffed behind his back in an attic, beaten with fists and feet, face shoved into the floor, gun pointed at his head repeatedly.
Movie 3 Crashes his motorcycle, sprains something, most likely a leg.
Movie 7 Slice on his forehead and voluntarily took a cut to the left shoulder with a poisoned dagger.
Movie 10 Shot in the arm and leg.
 Character popularity
- eBookJapan held a character popularity poll from April 12, 2011 to May 12, 2011 in which readers of Detective Conan (international included) could vote for their favorite character. Heiji placed 6th in the poll with 261 votes out of the 5,883 that were cast.
- Heiji placed 3rd in the results of a poll ranking the top 3 "ikemen" ("good-looking men") of the series aired during the promotional special for The Lost Ship in the Sky.
- In honor of the release of the 15th movie, Quarter of Silence, the official Conan movie website held a popularity poll for the top 10 Detective Conan characters. Heiji placed 3rd out of 10 with 10.79% of the votes cast.
- In honor of the release of the 800th manga chapter, Shonen Sunday held a popularity poll/contest containing 91 Detective Conan characters to choose from. Heiji placed 5th overall with 956 votes.
 Name origin
Heiji's name comes from fictional Edo period police detective Zenigata Heiji (銭形 平次 ) and famous samurai and ninja Hattori Hanzou (服部 半蔵 ). His surname also stems from Inspector Hattori, a police officer who often cooperates with Detective Shunsaku Kudo of the TV Drama Tantei Monogatari (Detective Tales).
 Different looks
|“||Humans are suspicious and jealous creatures. When they see something perfect, they wanna find a flaw.||„|
|“||Life is limited, that's why it's so precious. Since there's a limit, we try our best to live.||„|
|“||Not good... detective suits me better.||„|
— Heiji and Conan forced to chop up vegetables
 In other languages
- Heiji has become somewhat infamous for the amount of injuries he has sustained throughout the series. A fan-compiled full list can be found here. As the link is now dead, a new list can be found on this page under "Injuries".
- Heiji, along with Shinichi Kudo, Kaito Kuroba, and Saguru Hakuba, are sometimes referred to as 'The Four Geniuses' or 'The Gosho Boys' by fans.
 See also
- Hattori family
- Heiji Hattori Appearances
- Heiji Hattori and Kazuha Toyama
- "Ahou Calling", a fan-made Heiji Hattori reference site.
- ^ a b Conan drill page 56
- ^ Interview with Gosho Aoyama at Comic Salon in Erlangen, July 22, 2006
- ^ Manga Volume 19: Files 185 (Stabbed Wallet Case)
- ^ Manga Chapters 518-522: Yuki-Onna Murder Case
- ^ Manga Chapters 092-096: The Great Detective Of The West
- ^ Manga Chapters 121: The Holmes Freak Case: The Revelation
- ^ Aoyama, Gosho (in English). Case Closed. 34. Viz Media chapter=Files 2-7.
- ^ Aoyama, Gosho. "Files 7" (in Japanese). Meitantei Conan. 56.
- ^ Manga Volume 59, File 6, pg 6: Armored Warrior
- ^ Manga Volume 59, File 7, pg 11: Art of War
- ^ Manga Volume 63, File 1, page 3: My Deduction
- ^ Aoyama, Gosho (in English). Case Closed. 26. Viz Media chapter=Files 1-7.
- ^ Aoyama, Gosho. "Files 5-8" (in Japanese). Meitantei Conan. 19.
- ^ Aoyama, Gosho (in Japanese). Meitantei Conan. 39.
- ^ Manga Chapter 256: Concealed Truth
- ^ OVA 06: Follow the Vanished Diamond! Conan & Heiji vs. Kid!
- ^ Manga Chapters 092:
- ^ "『名探偵コナン』 人気投票結". eBookJapan. 2011-05-12. http://www.ebookjapan.jp/ebj/special/conan/vote_kekka2.asp. Retrieved on 2011-05-15.
- ^ The Lost Ship in the Sky Special Edition Blu-ray
- ^ "名探偵コナン「キャラクター人気投票」". www.conan-movie.jp. 2011. http://www.conan-movie.jp/camp_chara/camp15th_res.html. Retrieved on 2011-08-12.
- ^ "Shonen magazine detective conan official poll results published [magazine pic"]. eva. 2012-02-28. http://forum.dctp.ws/index.php?topic=8024.msg651566#msg651566. Retrieved on 2012-02-29.