# High Treason Incident

Part of a series on :
Anarchism :
Glossary
History
Outline :
Schools of thought
Black
Feminist
Green
Primitivist
Social ecology
Total liberation
Individualist
Egoist
Market
Philosophical
Mutualist
Queer
Religious
Christian
Jewish
Social
Collectivist
Parecon
Communist
Magonism
Without adjectives
Methodology
Counter-economics
Illegalism
Insurrectionary
Pacifist
Platformism
Relationship
Syndicalist
Synthesis :
Theory
Practice
Anarchy
Anarchist Black Cross
Anarchist criminology
Anationalism
Anti-authoritarianism
Anti-capitalism
Anti-militarism
Affinity group
Autonomous social center
Black bloc
Classless society
Class struggle
Consensus decision-making
Conscientious objector
Critique of work
Decentralization
Deep ecology
Direct action
Free love
Freethought
Horizontalidad
Individualism
Law
Mutual aid
Participatory politics
Permanent autonomous zone
Prefigurative politics
Proletarian internationalism
Propaganda of the deed
Refusal of work
Revolution
Rewilding
Sabotage
Security culture
Self-ownership
Social ecology
Sociocracy
Somatherapy
Spontaneous order
Squatting
Temporary autonomous zone
Union of egoists
Voluntary association
Workers' council :
People
Alston
Armand
Ba
Bakunin
Berkman
Bonanno
Bookchin
Bourdin
Chomsky
Cleyre
Day
Durruti
Ellul
Ervin
Faure
Fauset MacDonald
Ferrer
Feyerabend
Giovanni
Godwin
Goldman
González Prada
Graeber
Guillaume
He-Yin
Kanno
Kōtoku
Kropotkin
Landauer
Liu
Magón
Makhno
Maksimov
Malatesta
Mett
Michel
Most
Parsons
Pi i Margall
Pouget
Proudhon
Raichō
Reclus
Rocker
Santillán
Spooner
Stirner
Thoreau
Tolstoy
Tucker
Volin
Ward
Warren
Yarchuk
Zerzan :
Issues
Animal rights
Capitalism
Education
Love and sex
Nationalism
Religion
Violence :
History
French Revolution
Revolutions of 1848
Spanish Regional Federation of the IWA
Paris Commune
Hague Congress
Cantonal rebellion
Haymarket affair
International Conference of Rome
Trial of the Thirty
International Conference of Rome
Ferrer movement
Strandzha Commune
Congress of Amsterdam
Tragic Week
High Treason Incident
Manifesto of the Sixteen
German Revolution of 1918–1919
Bavarian Soviet Republic
1919 United States bombings
Biennio Rosso
Kronstadt rebellion
Makhnovshchina
Amakasu Incident
Alt Llobregat insurrection
Anarchist insurrection of January 1933
Anarchist insurrection of December 1933
Spanish Revolution of 1936
Barcelona May Days
Red inverted triangle
Labadie Collection
Provo
May 1968
Kate Sharpley Library
Carnival Against Capital
1999 Seattle WTO protests
Really Really Free Market
Occupy movement :
Culture
A las Barricadas
Anarchist bookfair
Anarcho-punk
Arts
DIY ethic
Escuela Moderna
Films
Freeganism
Infoshop
Independent Media Center
The Internationale
Jewish anarchism
Lifestylism
May Day
"No gods, no masters"
Popular education
"Property is theft!"
Radical cheerleading
Radical environmentalism
Self-managed social center
Symbolism :
Economics
Communization
Cooperative
Cost the limit of price
Decentralized planned economy
Free association
General strike
Gift economy
Give-away shop
Labour voucher
Market socialism
Mutual bank
Mutual credit
Social ownership
Wage slavery
Workers' self-management :
By region
Africa
Albania
Algeria
Andorra
Argentina
Armenia
Australia
Austria
Azerbaijan
Bangladesh
Belarus
Belgium
Bolivia
Bosnia and Herzegovina
Brazil
Bulgaria
Canada
Chile
China
Colombia
Costa Rica
Croatia
Cuba
Cyprus
Czech Republic
Denmark
Dominican Republic
East Timor
Ecuador
Egypt
El Salvador
Estonia
Finland
France
French Guiana
Georgia
Germany
Greece
Guatemala
Hong Kong
Hungary
Iceland
India
Indonesia
Iran
Ireland
Israel
Italy
Japan
Korea
Latvia
Malaysia
Mexico
Monaco
Mongolia
Morocco
Netherlands
New Zealand
Nicaragua
Nigeria
Norway
Panama
Paraguay
Peru
Philippines
Poland
Portugal
Puerto Rico
Romania
Russia
Serbia
Singapore
South Africa
Spain
Sweden
Switzerland
Syria
Taiwan
Tunisia
Turkey
Ukraine
United Kingdom
United States
Uruguay
Venezuela
Vietnam :
Lists
Anarcho-punk bands
Books
Fictional characters
Films
Jewish anarchists
Musicians
Periodicals :
Related topics
Anti-corporatism
Anti-consumerism
Anti-fascism
Anti-globalization
Anti-statism
Anti-war movement
Autarchism
Autonomism
Communism
Definition of anarchism and libertarianism
Dual Power
Labour movement
Left communism
Left-libertarianism
Libertarianism
Libertarian socialism
Marxism
Relationship between Friedrich Nietzsche and Max Stirner
Situationist International
Socialism
Spontaneous order :
Anarchism portal
Politics portal :
vte :
The High Treason Incident (大逆事件, Taigyaku Jiken), also known as the Kōtoku Incident (幸徳事件, Kōtoku Jiken), was a socialist-anarchist plot to assassinate the Japanese Emperor Meiji in 1910, leading to a mass arrest of leftists, as well as the execution of 12 alleged conspirators in 1911. Another 12 conspirators who were initially condemned to death had their sentences commuted to life in prison. Two others received prison sentences of 8 and 11 years.

## Investigation

On 20 May 1910, the police searched the room of Miyashita Takichi (1875–1911), a young lumbermill employee in Nagano Prefecture, and found materials which could be used to construct bombs. Investigating further, the police arrested his accomplices, Nitta Tōru (1880–1911), Niimura Tadao (1887–1911), Furukawa Rikisaku (1884–1911) and Kōtoku Shūsui and his former common-law wife, feminist author Kanno Suga. Upon questioning, the police discovered what the prosecutor's office regarded as a nationwide conspiracy against the Japanese monarchy.
In the subsequent investigation, many known leftists and suspected sympathizers were brought in for questioning around the country. Eventually, 25 men and one woman were brought to trial on the charge of violation of Article 73 of the Criminal Code (harming or intending harm to the Emperor or member of the imperial family). Four of those arrested were Buddhist monks. The case was tried in a closed court, and the prosecutor was Hiranuma Kiichirō.
Evidence against the defendants was mainly circumstantial. Nonetheless, twenty-four of the twenty-six defendants were sentenced to death by hanging on 18 January 1911, and the remaining two defendants were sentenced to 8 years and 11 years for violation of explosives ordinances.
Of the death sentences, an Imperial Rescript commuted twelve to life imprisonment on the following day. Of the remaining twelve, eleven were executed on 24 January 1911. These included Shūsui, a prominent Japanese anarchist, Ōishi Seinosuke, a doctor, and Uchiyama Gudō, the only one of the Buddhist priests arrested to be executed. The last of the condemned defendants, the only woman, Kanno Sugako, was executed the next day.
The case was largely used as a pretext by authorities to round up dissidents. Only five or six of those accused and convicted in the trial actually had anything to do with the plot to kill the emperor. Even the foremost defendant, Shūsui, had not been involved in the plot since the very earliest stages, but his high prestige made him the principal figure to the prosecution.
The High Treason Incident is indirectly related to the Red Flag Incident of 1908. During the High Treason investigation, anarchists already incarcerated were questioned about possible involvement, including Ōsugi Sakae, Sakai Toshihiko, and Yamakawa Hitoshi. Being already in jail saved many from facing further charges. Kanno, who was found not guilty during the Red Flag trials, was arrested, tried, and sentenced to death in the High Treason trials.

## Aftermath

The High Treason Incident created a shift in the intellectual environment of the late Meiji period towards more control and heightened repression for ideologies deemed potentially subversive. It is often cited as one of the factors leading to the promulgation of the Peace Preservation Laws.
A plea for a retrial was submitted after the end of the Second World War, but this was turned down by the Supreme Court in 1967.