There are two episodes in which Haibara holds a gun:

1. 129 "The Murder Case of a Female University Professor from a Dark Organization" (this is Haibara's first appearance)

The number of episodes before Haiyuan 280 is as follows:

130 Indiscriminate Coercion Incident in the Arena (Part 1) ) (The Incident of Indiscriminate Coercion in the Arena (Part 1))

131 The Incident of Indiscriminate Coercion in the Arena (Part 2) (The Incident of Indiscriminate Coercion in the Arena (Part 2))

135 The search for the missing murder weapon (The murder weapon search incident)

136 The exploration of the blue castle (Part 1) (The exploration of the blue castle (Part 1))

137 Blue Castle Exploration Incident (Part 2) (Ao no Castle Exploration Incident (Part 2))

138 The Last Murder Case Released (Part 1) (The Last Murder Case Released (Part 1))

139 The Murder Case Last Released (Part 2) (The Murder Case Last Released (Part 2))

140 SOS! Message conveyed by Ayumi (SOS!歩美からのメッセージ)

146 Honjo Criminal Love Story (Part 1) (Honjo no Criminal Love Story (Part 1))

147 Criminal Love Story of the Agency (Part 2) (Criminal Romance Story of Honjo (Part 2))

156 Criminal Love Story of the Agency Ⅱ (Part 1) (Criminal Love Story of Honjo 2 (Part 1)) < /p>

157 Honjo Criminal Love Story Ⅱ (Part 2) (Honjo Criminal Love Story 2 (Part 2))

174 20 years of murderous intent, the serial killings on the New Forni 2-hour special episode (approximately 10 seconds of appearance...)

176 Reunion with the Dark Organization (Haihara Edition) (Black Organization No Reunion (Haihara Edition))

177 Reunion with the Dark Organization (Conan) (Black Organization No Reunion (コナン))

178 Reunion with the Dark Organization (Resolution) (Black Organization Reunion (Resolution) )

182 The Great Search of the Nine Gates (大捜SO 9つのドア)

188 The Detective Team in the Dangerous Resurrection Cave (明がけのRESURRECTION～The Cave’s Detective Group)

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189 The Dangerous Resurrection of the Wounded Detective (明がけのRESURRECTION～The Wounded Detective)

190 The Dangerous Resurrection of the Third Option (明がけのRESURRECTION～THREE CHOICE) 択)

191 The Dangerous Resurrection of the Black Knight (明がけのRESURRECTION～黑衣のKnight)

192 The Dangerous Resurrection of Shinichi is back (明がけのRESURRECTION～帰ってきた Shinichi)

193 The Promised Place of Dangerous Resurrection (Ming no Resurrection ~ Place of Restraint)

194 The Meaningful Music Box (Part 1) (The Meaningful Music Box (Part 1) (editor))

195 The Meaningful Music Box (Part 2) (Meaningful Music Box (Part 2))

205 Honjo Criminal Love Story III (Part 1) (Honjo no) Criminal Love Story 3 (Part 1))

206 Honjo Criminal Love Story III (Part 2) (Honjo Criminal Love Story 3 (Part 2))

212 Mushrooms, Mountains The Bear and the Detective Team (Part 1) (The Bear and the Detective Team (Part 1))

213 The Mushroom, the Mountain Bear and the Detective Team (Part 2) (The Bear and the Detective Team (Part 2) (editor))

225 The Secret of Prosperous Business (Business Prosperity)

230 The Mysterious Passenger (Part 1) (Mysterious Passenger (Part 1))

231 The Mysterious Passenger (Part 2) (Mysterious Passenger (Part 2))

233 The Evidence that Cannot Disappear (Part 1) (The Passenger (Part 1))

234 The evidence that cannot disappear (Part 2) (Elimination of evidence (Part 2))

242 The disaster of Gentai (The disaster of Gentai boy)

246 The mystery caught in the net (Part 1) (net にかかったMystery (part 1))

247 The mystery caught in the net (Part 2) (net にかかっっmystery (part 2))< /p>

258 The Man from Chicago (Part 1) (シカゴから来た男 (Part 1))

259 The Man from Chicago (Part 2) (シカゴから来た男 (Part 2) (Editor))

266 The truth about Valentine's Day (incident) (バレンタインの真実 (event))

269 Souvenirs of crime (Part 1) (Crime's forgetting form) (Part 1))

270 Souvenirs of Crime (Part 2) (Part 2) (Part 2))

276 Incident of lost police manual (incident of missing police handbook)