SHIMBUN.co.jpJapan’s source-locked case archive.
TOP STORY / CASE FILE 001

300 Million Yen Incident

三億円事件

A fake motorcycle officer, a cash car, smoke, and roughly 300 million yen disappearing into postwar legend. SHIMBUN.co.jp begins with Japan’s perfect-crime myth, read through sources, records, and memory.

Read Case 001 日本語 All Case Files

Top Story

Case 001 is the origin point: a cold case read not as spectacle, but as record, reporting, and public memory.

300 Million Yen Incident
CASE FILE 001

300 Million Yen Incident

三億円事件

1968 / Unsolved / The perfect-crime myth

A fake motorcycle officer, a cash car, smoke, and roughly 300 million yen disappearing into postwar legend.

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Editorial Rule

Fact locking, not suspect hunting. Record, not fear. Sources, not speculation.

Categories

Cold cases, justice history, political corruption, corporate cases, terrorism, pollution, disaster, organized crime, and media memory.

Ten Files Published

From the 300 Million Yen Incident to Minamata Disease: Japan’s systems, failures, and memories in case-file form.

Case Files

Cases 002–010. Each file separates confirmed facts, reported accounts, disputed claims, and unknowns.

Glico-Morinaga Case
CASE FILE 002

Glico-Morinaga Case

グリコ・森永事件

1984–85 / Unsolved / Corporate extortion and theater crime

The Monster with 21 Faces, candy aisles, corporate brands, and media fear in late-Showa Japan.

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Setagaya Family Murder
CASE FILE 003

Setagaya Family Murder

世田谷一家殺害事件

2000 / Unsolved / A modern forensic cold case

Many traces were left behind, yet no arrest followed. A defining modern cold case in Japan.

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Teigin Incident
CASE FILE 004

Teigin Incident

帝銀事件

1948 / Justice history / Poison and wrongful-conviction questions

A postwar bank poisoning, a death sentence, retrial efforts, and a justice question that never fully closed.

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Lockheed Scandal
CASE FILE 005

Lockheed Scandal

ロッキード事件

1976 / Political corruption / Aircraft and power

Aircraft, bribes, U.S. Senate disclosures, Tokyo prosecutors, and Kakuei Tanaka’s political machine.

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Tokyo Subway Sarin Attack
CASE FILE 006

Tokyo Subway Sarin Attack

地下鉄サリン事件

1995 / Terrorism and public safety / Urban chemical attack

Chemical terror entered the morning commute, changing public safety, emergency response, and national memory.

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Fukushima Daiichi Nuclear Disaster
CASE FILE 007

Fukushima Daiichi Nuclear Disaster

福島第一原発事故

2011 / Disaster accountability / Collapse of the safety myth

Tsunami, meltdown, evacuation, and institutional response. Not only a natural disaster, but a failure of assumptions.

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The Yama-Ichi War
CASE FILE 008

The Yama-Ichi War

山一抗争

1980s / Organized crime / Public order

A Yamaguchi-gumi split, the Ichiwa-kai, and the organized-crime conflict that shook Kobe and Kansai.

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Olympus Accounting Scandal
CASE FILE 009

Olympus Accounting Scandal

オリンパス粉飾決算事件

2011 / Governance / Accounting scandal

Hidden losses, a fired CEO, acquisition fees, auditors, and the quiet collapse of boardroom oversight.

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Minamata Disease Case
CASE FILE 010

Minamata Disease Case

水俣病事件

1956– / Pollution justice / Environmental accountability

The poisoned sea, the silent state, and victims who refused to disappear. A defining environmental-justice case.

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How to Read

The archive values clear categories over dramatic certainty.

CONFIRMEDFacts supported by public records, court records, official material, or reliable reporting.
REPORTEDInformation that has been reported but may not be finally established.
DISPUTEDIssues where interpretation, evidence, or historical judgment remains contested.
UNKNOWNQuestions that remain unresolved or cannot be verified.