A metal detector was a piece of evidence in Phoenix Wright's investigation into the murder of Robert Hammond. It has also appeared as an investigation tool on two other occasions.

Detective Dick Gumshoe refers to the metal detector as the second of his so-called Seven Tools of Investigation.

Finding "Gourdy"Edit

Main article: Turnabout Goodbyes

During their investigation into Robert Hammond's murder, with Miles Edgeworth as their client, Phoenix Wright and Maya Fey were forced to help Lotta Hart acquire evidence of "Gourdy", a monster believed to live in Gourd Lake, in order to get information about the case out of her. After going to Detective Gumshoe for his help, they were offered his fishing pole, a metal detector, or a police dog named Missile.

With the metal detector, they soon found an air tank near the boat rental shop, which they eventually learnt belonged to Larry Butz. On the day of the only sighting of "Gourdy", Butz had been trying to fill up an inflatable Steel Samurai given to him by his then current girlfriend, Kiyance. While trying to fill it up he let go of the air canister, and the inflatable flew up into the air, giving off a noise like an explosion. It then crashed into the water just as a couple were having their photo taken. Owing to the shape of the crashing inflatable's silhouette resembling the neck and head of a lake monster akin to the famous Loch Ness Monster, the legend of Gourdy was born. Returning to Hart with the truth behind Gourdy, the disappointed photographer revealed that Prosecutor Manfred von Karma's witness in the trial the following day would be the boat rental shop caretaker.

In court, Wright proved that said caretaker was actually Yanni Yogi, the suspect in the DL-6 Incident fifteen years prior that had resulted in the death of Edgeworth's father, and the true culprit behind Hammond's murder. However, after the not guilty verdict was read, Edgeworth immediately confessed to killing his own father in the DL-6 Incident. However, Wright soon proved him wrong, as he suspected von Karma had been the real killer. Using the metal detector, Wright revealed that the missing bullet from the incident had been lodged in von Karma's shoulder all that time, thereby proving that he had been at the scene of the crime and the true culprit.

Two months later, the metal detector was seen in the Los Angeles police department's evidence room.

Searching for a hidden bladeEdit

Main article: Bridge to the Turnabout

On Feb. 9, 2019, Gumshoe once again lent Wright the metal detector to search for clues, this time in the courtyard of Hazakura Temple, where the corpse of Elise Deauxnim had been found. With the metal detector, Wright soon discovered that the victim's staff had a blade concealed inside, which had been used as the murder weapon.

Searching for a hidden bladeEdit

Main article: The Imprisoned Turnabout
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Gumshoe's metal detector was once again called into action during Miles Edgeworth's investigation into the murder of Horace Knightley, where it was used in the prison courtyard to detect a missing weight. It was also used in the same courtyard to find the murder weapon, a knife, which had been hidden in the mouth of the prison warden's pet alligator.

Phoenix Wright: Ace Attorney evidence
The First Turnabout Attorney's Badge · Cindy's Autopsy Report · The Thinker · Passport · Blackout Record
Turnabout Sisters Attorney's Badge · The Thinker · Glass Shards · Receipt · Maya's Memo · Mia's Autopsy Report · Maya's Cell Phone · Wiretap · Floor Plans · May Testimony · Photograph · Bellboy's Affidavit · Newspaper Clipping · Mia's Memo
Turnabout Samurai Attorney's Badge · Powers's Letter · Guidemap · Jack's Autopsy Report · Cardkey · Powers'(?) Photo · Samurai Spear · Sleeping Pill Bottle · Trailer Key · Vasquez's Memo · Script · Mr. Monkey's Head · Steel Samurai Card · URP Card · "Path to Glory" · Cody's Camera · Steak Plate · Five-Year-Old Photo · Van
Turnabout Goodbyes Attorney's Badge · Popper · Lotta's Camera · Robert's Autopsy Report · Lake Photo · Gourdy Article · Misty Fey's Photo · Edgeworth's Request · Overhead Map · Pistol Bullet · Pistol · Lotta's Deposition · Missile · Fishing Pole · Metal Detector · Air Tank · Second Lake Photo · Parrot · DL-6 Case File · DL-6 Incident Photo · Letter from the Safe · DL-6 Bullet
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