{{Short description|Simultaneous arrest of a large number of people by law enforcement}} A '''mass arrest''' occurs when police apprehend large numbers of suspects at once. This sometimes occurs at protests. Some mass arrests are also used in an effort to combat gang activity.<ref>{{citation|title=Mass Arrest of Brooklyn Youths Spotlights Tactics|date=June 24, 2007|author=Lee, Trymaine|work=The New York Times|url=https://www.nytimes.com/2007/06/24/nyregion/24arrests.html}}</ref> This is sometimes controversial, and lawsuits sometimes result.<ref>{{citation|title=City poised to approve 'mass arrest' settlement with NAACP, ACLU|work=The Baltimore Sun|url=http://www.baltimoresun.com/news/maryland/bs-md-ci-naacp-lawsuit-20100622,0,1815500.story|archive-url=https://wayback.archive-it.org/all/20171010072455/http://articles.baltimoresun.com/2010-06-23/news/bs-md-ci-naacp-lawsuit-20100622_1_arrests-settlement-naacp-and-aclu|url-status=dead|archive-date=October 10, 2017|author=Fenton, Justin|date=June 23, 2010}}</ref> In police science, it is deemed to be good practice to plan for the identification of those arrested during mass arrests, since it is unlikely that the officers will remember everyone they arrested.<ref>{{citation|author=Richard L. Holcomb|title=The Police Role in Racial Conflicts by Juby E. Towler|publisher=The Journal of Criminal Law, Criminology, and Police Science|volume=55|number=4|date=Dec 1964|pages=540|jstor=1140912}}</ref>

==Historical examples== The Japan Farmers' Union and Japanese labor-farmer groups were hit by mass arrests in the 1920s. On April 16, 1929, several thousand members of the farmers' movement were arrested.<ref>{{citation|title=Japanese Tenant Movements|author=Seiyei Wakukawa|journal=Far Eastern Survey|volume=15|number=3|date=Feb 13, 1946|pages=40–44|doi=10.2307/3022364|jstor=3022364}}</ref> Following World War II, mass arrests (over 120,000) of actual and suspected Quislings occurred in Norway.<ref>{{citation|author=Amry Vandenbosch|title=The Purge of Dutch Quislings; Emergency Justice in the Netherlands. by Henry L. Mason|publisher=The Journal of Politics|volume=14|number=4|date=Nov 1952|pages=751–752|jstor=2126459}}</ref> Totalitarian regimes have sometimes conducted mass arrests as a prelude to a purge of perceived political enemies, sometimes through executions.

On March 10, 2010 a mass crackdown was initiated to thwart a planned peaceful 'million march' to be conducted in a South Indian state capital of Hyderabad demanding formation of a new federal unit, more than 100,000 Telangana people were taken in to custody by a police force controlled by the coastal 'andhra' elites.<ref>{{Cite news|url=https://www.bbc.co.uk/news/world-south-asia-12699113|title=Mass arrests before India rally|date=2011-03-10|work=BBC News|access-date=2017-10-20|language=en-GB}}</ref>

The 2010 G-20 Toronto summit was witness to the largest mass arrest in Canadian history.<ref name="mahoney">{{cite news| title=G20-related mass arrests unique in Canadian history| url=https://www.theglobeandmail.com/news/world/g8-g20/news/g20-related-mass-arrests-unique-in-canadian-history/article1621198/| date=29 June 2010| work=The Globe and Mail| access-date=2012-04-05| author=Jill Mahoney| author2=Ann Hui| name-list-style=amp| publisher=theglobeandmail.com| archive-date=2010-07-28| archive-url=https://web.archive.org/web/20100728172459/http://www.theglobeandmail.com/news/world/g8-g20/news/g20-related-mass-arrests-unique-in-canadian-history/article1621198/| url-status=dead}}</ref>

===Mass arrests of protesters in the United States=== In December 1964, the University of California, Berkeley was disrupted by a mass student sit-in in the administration building and by mass arrests of 700 students.<ref>{{citation|author=Nathan Glazer|title=Student Protest in the U S|journal=Economic and Political Weekly|volume=2|number=12|date=Mar 25, 1967|pages=601–605|jstor=4357739}}</ref>

Beginning on May 3, 1971, three days into the 1971 May Day Protests - a series of large-scale civil disobedience actions in Washington, D.C. - massive arrest sweeps begin. In a few days over 12,000 are arrested - the largest mass arrest in U.S. history.<ref name=UPI1971>[http://www.upi.com/Audio/Year_in_Review/Events-of-1971/12295509436546-1/#title Page 5 "Vietnam Demonstrations: 1971 Year in Review, United Press International Accessed 2009-04-13.] {{webarchive|url=https://web.archive.org/web/20090503142809/http://www.upi.com/Audio/Year_in_Review/Events-of-1971/12295509436546-1/ |date=2009-05-03 }}</ref><ref>[https://web.archive.org/web/20090503142809/http://www.upi.com/Audio/Year_in_Review/Events-of-1971/12295509436546-1/ 1971 Year in Review Archived United Press International 2009-05-05].</ref>

Former American President Jimmy Carter said in regards to the racial conflicts of the time, "I would be opposed to mass arrest, and I would be opposed to preventive detention. But I think that the abuses in the past have in many cases exacerbated the disharmonies that brought about demonstrations, and I think that arrest or large numbers of people without warrants ... is a contrary to our best systems of justice."<ref>Public Papers of the Presidents of the United States, Jimmy Carter, 1977, Book 1: January 20 to June 24, 1977, p. 346</ref>

On September 15, 1996, in Carlotta, CA, at a rally to end the clearcutting of ancient redwood forests, 1033 peaceful protesters were arrested.

A famous mass arrest occurred on September 27, 2002, in Washington, DC in which several hundred anti-World Bank/International Monetary Fund protestors, journalists and bystanders were systematically arrested by police<ref>{{citation|url=http://www.fair.org/index.php?page=3965|title=Another Day, Another Mass Arrest|author=Rachel Coen|date=November–December 2002|publisher=Fairness and Accuracy in Reporting}}</ref><ref>{{citation|url=http://www.commondreams.org/headlines02/1001-01.htm|date=October 1, 2002|publisher=Agence France Presse|title=Activists Decry Police Intimidation in Anti-Globalization Protests|access-date=July 24, 2010|archive-url=https://web.archive.org/web/20121007123454/http://www.commondreams.org/headlines02/1001-01.htm|archive-date=October 7, 2012|url-status=dead}}</ref> and charged with failure to obey a police order.<ref>{{citation|url=http://www.dcwatch.com/police/030125.htm |title=Final Report Relative to Complaints of Alleged Misconduct Made at the October 24, 2002, Hearing of the Committee on the Judiciary of the Council of the District of Columbia Concerning the IMF/World Bank Protest |url-status=dead |archive-url=https://web.archive.org/web/20101006135953/http://dcwatch.com/police/030125.htm |archive-date=October 6, 2010 }}</ref> A class action lawsuit against the government ensued.<ref>{{cite web |url=http://www.pershingparksettlement.com/ |url-status=dead |archive-url=https://web.archive.org/web/20100618114849/http://www.pershingparksettlement.com/ |archive-date=2010-06-18 |title=Barham Settlement}}</ref> Pre-emptive mass arrests have also sometimes been criticized.<ref>{{citation|url=https://www.independent.co.uk/opinion/leading-articles/leading-article-mass-arrests-have-no-place-in-a-democratic-country-1668276.html|title=Leading article: Mass arrests have no place in a democratic country|date=14 April 2009|work=The Independent}}</ref>

Over 1,700 protesters were arrested during the 2004 Republican National Convention in New York City.<ref>{{cite news| url=https://www.cbsnews.com/news/a-raw-deal-for-rnc-protesters/| author=Jarrett Murphy| title=A Raw Deal For RNC Protesters?| publisher=CBS News| date=September 3, 2004}}</ref>

On October 1, 2011, more than 700 protesters with the Occupy Wall Street movement were arrested while attempting to march across the bridge on the roadway.<ref>{{cite news |title=Police Arrest More Than 700 Protesters on Brooklyn Bridge |first1=Al |last1=Baker |first2=Colin |last2=Moynihan |first3=Sarah Maslin |last3=Nir |url=http://cityroom.blogs.nytimes.com/2011/10/01/police-arresting-protesters-on-brooklyn-bridge/ |newspaper=The New York Times |date=October 1, 2011 |access-date=2011-12-11}}</ref>

On January 28, 2012, also as part of the Occupy movement, more than 400 people were arrested in Oakland, CA.

During a seven-day span on Capitol Hill, from April 11 through April 18, 2016 police arrested approximately 1,240 people (300 arrests were made on April 18 alone) who were demonstrating for reforms to how Americans vote and campaign in elections.<ref>{{Cite news|url=https://thehill.com/blogs/blog-briefing-room/news/276689-capitol-police-arrest-more-than-1000-protesters/|title=Capitol Hill arrests in pro-democracy protest hit 1,240|last=Marcos|first=Cristina|date=2016-04-18|work=The Hill|access-date=2017-10-20}}</ref>

== War crime == Indiscriminate mass arrests were designated a war crime in 1944 by a commission on war crimes created by the London International Assembly. Thar was one of two items added by that Commission to the list of war crimes that had been drawn up by the Commission on the Responsibility of the Authors of the War and on Enforcement of Penalties in 1919. Specifically, "indiscriminate mass arrests for the purpose of terrorizing the population" were designated as war crimes by the commission.<ref name=Sunga1992 />

At the Netherlands temporary court martial in 1947, several members of the tokkeitai in the Netherlands East Indies were accused of the war crime of indiscriminate mass arrests. The applicable legislation, used by the court, was the NEI Statute Book Decree #44 of 1946, whose definition of war crimes paralleled the commission's list. Specifically, item #34 of the enumerated list of war crimes under the NEI legislation was "indiscriminate mass arrests for the purpose of terrorising the population, whether described as taking hostages or not". The court understood the definition of such unlawful mass arrests to be as "arrests of groups of persons firstly on the ground of wild rumours and suppositions, and secondly without definite facts and indications being present with regard to each person which would justify his arrest". It added commentary on indiscriminate mass arrests that are for the purpose of terrorizing the populace by stating that they "contained the elements of systematic terrorism for nobody, even the most innocent, was any longer certain of his liberty, and a person once arrested, even if absolutely innocent, could no longer be sure of health and life".<ref name=UNWCC />

==See also== *Arbitrary arrest and detention *January 2021 arrests of Hong Kong pro-democracy activists

==References== {{Reflist|refs= <ref name=Sunga1992>{{cite book|title=Individual responsibility in international law for serious human rights violations|volume=21|series=International studies in human rights|author=Lyal S. Sunga|publisher=Martinus Nijhoff Publishers|year=1992|isbn=978-0-7923-1453-0|pages=25&ndash;26}}</ref> <ref name=UNWCC>{{cite book|title=Law reports of trials of war criminals|volume=1&ndash;5|author=United Nations War Crimes Commission|author-link=United Nations War Crimes Commission|isbn=978-1-57588-403-5|publisher=Wm S. Hein Publishing|year=1997|chapter=Trial of Shigeki Motomura and 15 others|pages=138&ndash;145}}</ref> }}

Category:Criminal justice Category:Crowd control Category:Political repression Category:Arrests