¿Qué son las pistolas eléctricas y por qué las usa la Policía de EEUU?
Este tipo de armas dan descargas eléctricas de hasta 50.000 voltios, que provocan contracciones de los músculos e inmovilizan al sujeto.
La muerte del afroamericano Rayshard Brooks hace cinco días en Georgia (EEUU) ha desatado un nuevo debate sobre las pistolas que dan descargas eléctricas, creadas supuestamente para rebajar la tensión en confrontaciones pero que pueden tener el efecto contrario.
Esas armas no funcionaron en el caso de Brooks, al que dos policías blancos intentaron reducir con descargas antes de que uno de ellos le disparara por la espalda.
Estas son las claves de la nueva polémica sobre estas armas:
¿Qué ocurrió en el caso de Rayshard Brooks?
Rayshard Brooks, de 27 años, estaba durmiendo en su vehículo en el aparcamiento de un restaurante de comida rápida de la cadena Wendy’s, cuando dos policías blancos le hicieron un test de alcoholemia que dio positivo.
Como había bebido, Brooks se ofreció a dejar allí el vehículo y caminar hasta la casa de su hermana, pero los agentes decidieron arrestarle.
Brooks forcejeó con los policías y ellos le dieron descargas eléctricas son sus pistolas, ante lo que Brooks reaccionó agarrando uno de esos aparatos. Salió corriendo y lanzó descargas a uno de los agentes que casi al mismo tiempo sacó su arma de fuego y disparó.
Su muerte se produce en medio de una ola de indignación, que provocó multitudinarias protestas tras el fallecimiento el 25 de mayo de otro hombre afroamericano, George Floyd, asfixiado por un agente blanco.
¿Cómo funcionan las pistolas eléctricas?
Las pistolas dan descargas eléctricas de hasta 50.000 voltios, que provocan contracciones de los músculos e inmovilizan al sujeto.
Hay dos formas de usarlas: directamente sobre la persona a corta distancia o, si está lejos, la pistola lanza dos dardos punzantes con forma de anzuelo que están conectados por cables y que, al agarrarse al individuo, forman un circuito cerrado y dan la descarga, dice a Efe el profesor Dennis Kenney de la universidad John Jay en Manhattan.
“Lo que ocurre es que los músculos se congelan y la persona se cae al suelo porque no puede controlar sus movimientos. Obviamente, cuando se retira la mano del gatillo el voltaje se detiene y poco a poco la persona puede recuperar el control”, explica Kenney.
Las pistolas son conocidas como “Taser” por su fabricante Axon Enterprise, antes con el nombre Taser International, y que eligió este nombre por las siglas de una novela de 1911 titulada “Tom Swift and His Electric Rifle” (Tom Swift y su rifle eléctrico, en español).
¿Por qué se utilizan?
Axon Enterprise anuncia las pistolas como “armas inteligentes” que sirven supuestamente para rebajar la tensión en confrontaciones entre la policía y un sospechoso.
La idea es que una descarga eléctrica es preferible a un disparo y la compañía asegura que su uso ha servido para “salvar” a 234.744 personas de la muerte o de una herida grave, un dato que la empresa ofrece basándose en estudios internos pero que no ha sido corroborado externamente.
Lo que sí han mostrado otros estudios es que estos aparatos sirven para proteger a los propios agentes, de acuerdo al Foro Ejecutivo de Investigación Policial (PERF, en inglés), que agrupa a jefes de policía de las principales ciudades de EEUU.
Una auditoría de PERF de 2009 mostró que las heridas de los policías descendieron un 76% durante la primera mitad del siglo XXI en todos aquellos departamentos que habían empezado a usar esos aparatos.
¿Pueden provocar la muerte?
Un estudio de 2011 del Departamento de Justicia, elaborado bajo el Gobierno del presidente Barack Obama (2009-2017), avisó de que 200 estadounidenses habían muerto después de haber sido electrocutados y que seis de ellos fallecieron al golpearse la cabeza después de perder el control de sus músculos.
De acuerdo a ese estudio, un “ciclo” de descargas dura cinco segundos y no suele provocar daños permanentes, aunque hay más riesgo para quienes padecen enfermedades cardiacas o mentales. El peligro aumenta cuando se superan los 15 segundos de descargas y a los 40 pueden provocar fallos en el corazón y la muerte.
En su último estudio de 2012, Amnistía Internacional (AI) estimó que 500 personas habían muerto en EEUU por las pistolas eléctricas y avisó de que el mayor número de decesos se produjo en los estados de California (92), Florida (65) y Texas (37).
¿Se emplean en otros países?
LA ONG Libertades Civiles para Europa aseguró en 2018 que policías de 107 países, incluidos Canadá, Brasil y Reino Unido, usan estas armas.
Su principal fabricante, Axon Enterprise, afirma que las ha vendido a 700.000 “profesionales” de la seguridad pública en todo el mundo, aunque no especifica en qué países.
Amnistía Internacional ha alertado de su uso en niños en EEUU, mientras que el Comité Contra la Tortura de la ONU en 2007 expresó preocupación por la posibilidad de que puedan emplearse para torturar a detenidos.
Protestas contra el racismo en EEUU
Protesta en Atlanta.
Disturbios en Mineapolis.
Queman un coche de la Policía en Atlanta.
Protestas en Oakland (California).
Edificio calcinado en Mineapolis.
Protestas en Charlotte (Carolina del Norte).
Protestas en Nueva York.
Protestas en Atlanta.
Disturbios en Atlanta.
La Policía carga contra los manifestantes en Detroit (Michigan).
Un edificio destrozado en Oakland (California)
Protestas en Mineapolis.
Un grupo de manifestantes en una protesta en Nueva York, Estados Unidos, el 29 de mayo de 2020 en rechazo a la muerte bajo la custodia policial del afroamericano George Floyd.
Un grupo de manifestantes participa en la quema de una comisaría en Minneapolis.
Protestas en Minneapolis por la muerte de un afroamericano a manos de la policía.
Protestas en Minneapolis por la muerte de un afroamericano a manos de la policía.
Protestas en EEUU por el racismo en EEUU.
Demonstrators pray during a march, Sunday, May 31, 2020, in Atlanta. Protests continued following the death of George Floyd, who died after being restrained by Minneapolis police officers on May 25. (AP Photo/Mike Stewart)
A protester tries to talk the police back amid tear gas in downtown Atlanta, Sunday, May 31, 2020. Protests continue across the country over the death of George Floyd, a black man who died after being restrained by Minneapolis police officers on...
Police hold off protesters during a solidarity rally for George Floyd, Sunday, May 31, 2020, in the Brooklyn borough of New York. Protests were held throughout the city over the death of Floyd, a black man in police custody in Minneapolis who di...
A police officer shouts to members of the media while trying to clear the streets of demonstrators in Memphis, Tennessee, early Monday, June 1, 2020, protesting the death of George Floyd who died in Minneapolis police custody May 25, 2020. (Da...
Manifestantes encienden una hoguera durante una protesta por la muerte de George Floyd el domingo 31 de mayo 2020, cerca de la Casa Blanca, en Washington.
People break into a smoke shop on Monday, June 1, 2020, in New York. Protests were held throughout the city over the death of George Floyd, a black man in police custody in Minneapolis who died after being restrained by police officers on Memori...
People run out of a smoke shop that they broke into as police arrive on the scene on Monday, June 1, 2020, in New York. Protests were held throughout the city over the death of George Floyd, a black man in police custody in Minneapolis who died ...
Protestors celebrate after eluding authorities and stopping traffic along Interstate 55 in Memphis, Tennessee, Sunday, May 31, 2020, during a protest over the death of George Floyd on May 25. (Patrick Lantrip/Daily Memphian via AP)
Police stop a driver in the SoHo shopping district Sunday, May 31, 2020, in New York. Protests were held throughout the city over the death of George Floyd, who died May 25 after he was pinned at the neck by a Minneapolis police officer. (AP Pho...
Arrested protesters are loaded onto a transport bus by police on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minneapolis police officer...
Demonstrators march, Sunday, May 31, 2020, in Atlanta. Protests continued following the death of George Floyd, who died after being restrained by Minneapolis police officers on May 25. (AP Photo/Brynn Anderson)
Motorists are ordered to the ground from their vehicle by police during a protest on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minnea...
A white man and a black man clasp hands as police in the background guard the old state capitol in Raleigh, N.C., on Monday, June 1, 2020. It was the second day of protests in the North Carolina capital following the death of Minnesotan George F...
A protester runs through tear gas on the Las Vegas Strip on Sunday, May 31, 2020, in Las Vegas, during demonstrations over the death of George Floyd, who died May 25 after he was pinned at the neck by a Minneapolis police officer. (AP Photo/Stev...
A brick protrudes from a shattered window in downtown Raleigh, N.C., on Monday, June 1, 2020. It was the second day of protests in the North Carolina capital following the death of Minnesotan George Floyd while in police custody. (AP Photo/Allen...
A protester confronts police during a rally in downtown Lexington, Ky., against the deaths of George Floyd and Breonna Taylor on Sunday, May 31, 2020. (Ryan C. Hermens/Lexington Herald-Leader via AP)
Motorists are ordered to the ground from their vehicle by police during a protest on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minnea...
A woman walks past a store boarded up with a message as protests over the death of George Floyd continue Sunday, May 31, 2020, in Los Angeles. Armed National Guard soldiers lined the steps of Los Angeles City Hall, and cities across California d...
Nick Brentley demonstrates in San Francisco on Sunday, May 31, 2020, to protest the death of George Floyd, who died after being restrained by Minneapolis police officers on May 25. (AP Photo/Noah Berger)
CHARLOTTE, USA - MAY 31: Following the death of George Floyd in Minneapolis, protest in downtown Charlotte turn violent in NC, United States on May 31, 2020 (Photo by Peter Zay/Anadolu Agency via Getty Images)
NEW YORK, USA - JUNE 1: People gather during a protest held against police killing of George Floyd in Minneapolis in New York, United States on June 1, 2020. (Photo by Mostafa Bassim/Anadolu Agency via Getty Images)
AUCKLAND, NEW ZEALAND - JUNE 01: (This image has been converted to black and white.) Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States follo...
VANCOUVER, BC - MAY 31: Thousands attend a protest against racism and police brutality at the Vancouver Art Gallery on May 31, 2020 in Vancouver, Canada. (Photo by Mert Alper Dervis/Anadolu Agency via Getty Images)
AUCKLAND, NEW ZEALAND - JUNE 01: (This image has been converted to black and white.) Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States follo...
VANCOUVER, BC - MAY 31: Thousands attend a protest against racism and police brutality at the Vancouver Art Gallery on May 31, 2020 in Vancouver, Canada. (Photo by Mert Alper Dervis/Anadolu Agency via Getty Images)
AUCKLAND, NEW ZEALAND - JUNE 01: Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of an unarmed black man George Floy...
AUCKLAND, NEW ZEALAND - JUNE 01: UFC fighter Israel Adesanya joins in the protest down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of ...
AUCKLAND, NEW ZEALAND - JUNE 01: A protestor marches down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of an unarmed black man George F...
AUCKLAND, NEW ZEALAND - JUNE 01: Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of an unarmed black man George Floy...
AUCKLAND, NEW ZEALAND - JUNE 01: Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of an unarmed black man George Floy...
VANCOUVER, BC - MAY 31: Thousands attend a protest against racism and police brutality at the Vancouver Art Gallery on May 31, 2020 in Vancouver, Canada. (Photo by Mert Alper Dervis/Anadolu Agency via Getty Images)
Motorists are ordered to the ground from their vehicle by police during a protest on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minnea...
LONDON, ENGLAND - JUNE 01: Protesters take part in a 'Black Lives Matter' demonstration on June 01, 2020 in London, England. Protests and riots continue across American following the death of George Floyd, who died after being restrained by Minn...
A protester reacts after being hit by pepper spray from police as their group of demonstrators are detained prior to arrest at a gas station on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued sparked by the deat...
A protester reacts after being hit by crowd dispersal rounds as a group of demonstrators are detained prior to arrest at a gas station on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued sparked by the death of G...
EDITORS NOTE: Graphic content / A worker removes graffiti near the White House after a third night of violent protests over the death of George Floyd June 1, 2020, in Washington, DC. - Police fired tear gas outside the White House late Sunday as...
LONDON, ENGLAND - JUNE 01: Protesters take part in a 'Black Lives Matter' demonstration on June 01, 2020 in London, England. Protests and riots continue across American following the death of George Floyd, who died after being restrained by Minn...
People remove graffiti near the White House after a third night of violent protests over the death of George Floyd on June 1, 2020, in Washington, DC. - Police fired tear gas outside the White House late Sunday as anti-racism protestors again to...
Un grupo de manifestantes en una protesta en Nueva York, Estados Unidos, el 29 de mayo de 2020 en rechazo a la muerte bajo la custodia policial del afroamericano George Floyd.
Un grupo de manifestantes participa en la quema de una comisaría en Minneapolis.
Protestas en Minneapolis por la muerte de un afroamericano a manos de la policía.
Protestas en Minneapolis por la muerte de un afroamericano a manos de la policía.
Demonstrators pray during a march, Sunday, May 31, 2020, in Atlanta. Protests continued following the death of George Floyd, who died after being restrained by Minneapolis police officers on May 25. (AP Photo/Mike Stewart)
A protester tries to talk the police back amid tear gas in downtown Atlanta, Sunday, May 31, 2020. Protests continue across the country over the death of George Floyd, a black man who died after being restrained by Minneapolis police officers on...
Police hold off protesters during a solidarity rally for George Floyd, Sunday, May 31, 2020, in the Brooklyn borough of New York. Protests were held throughout the city over the death of Floyd, a black man in police custody in Minneapolis who di...
A police officer shouts to members of the media while trying to clear the streets of demonstrators in Memphis, Tennessee, early Monday, June 1, 2020, protesting the death of George Floyd who died in Minneapolis police custody May 25, 2020. (Da...
Manifestantes encienden una hoguera durante una protesta por la muerte de George Floyd el domingo 31 de mayo 2020, cerca de la Casa Blanca, en Washington.
People break into a smoke shop on Monday, June 1, 2020, in New York. Protests were held throughout the city over the death of George Floyd, a black man in police custody in Minneapolis who died after being restrained by police officers on Memori...
People run out of a smoke shop that they broke into as police arrive on the scene on Monday, June 1, 2020, in New York. Protests were held throughout the city over the death of George Floyd, a black man in police custody in Minneapolis who died ...
Protestors celebrate after eluding authorities and stopping traffic along Interstate 55 in Memphis, Tennessee, Sunday, May 31, 2020, during a protest over the death of George Floyd on May 25. (Patrick Lantrip/Daily Memphian via AP)
Police stop a driver in the SoHo shopping district Sunday, May 31, 2020, in New York. Protests were held throughout the city over the death of George Floyd, who died May 25 after he was pinned at the neck by a Minneapolis police officer. (AP Pho...
Arrested protesters are loaded onto a transport bus by police on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minneapolis police officer...
Demonstrators march, Sunday, May 31, 2020, in Atlanta. Protests continued following the death of George Floyd, who died after being restrained by Minneapolis police officers on May 25. (AP Photo/Brynn Anderson)
Motorists are ordered to the ground from their vehicle by police during a protest on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minnea...
A white man and a black man clasp hands as police in the background guard the old state capitol in Raleigh, N.C., on Monday, June 1, 2020. It was the second day of protests in the North Carolina capital following the death of Minnesotan George F...
A protester runs through tear gas on the Las Vegas Strip on Sunday, May 31, 2020, in Las Vegas, during demonstrations over the death of George Floyd, who died May 25 after he was pinned at the neck by a Minneapolis police officer. (AP Photo/Stev...
A brick protrudes from a shattered window in downtown Raleigh, N.C., on Monday, June 1, 2020. It was the second day of protests in the North Carolina capital following the death of Minnesotan George Floyd while in police custody. (AP Photo/Allen...
A protester confronts police during a rally in downtown Lexington, Ky., against the deaths of George Floyd and Breonna Taylor on Sunday, May 31, 2020. (Ryan C. Hermens/Lexington Herald-Leader via AP)
Motorists are ordered to the ground from their vehicle by police during a protest on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minnea...
A woman walks past a store boarded up with a message as protests over the death of George Floyd continue Sunday, May 31, 2020, in Los Angeles. Armed National Guard soldiers lined the steps of Los Angeles City Hall, and cities across California d...
Nick Brentley demonstrates in San Francisco on Sunday, May 31, 2020, to protest the death of George Floyd, who died after being restrained by Minneapolis police officers on May 25. (AP Photo/Noah Berger)
CHARLOTTE, USA - MAY 31: Following the death of George Floyd in Minneapolis, protest in downtown Charlotte turn violent in NC, United States on May 31, 2020 (Photo by Peter Zay/Anadolu Agency via Getty Images)
NEW YORK, USA - JUNE 1: People gather during a protest held against police killing of George Floyd in Minneapolis in New York, United States on June 1, 2020. (Photo by Mostafa Bassim/Anadolu Agency via Getty Images)
AUCKLAND, NEW ZEALAND - JUNE 01: (This image has been converted to black and white.) Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States follo...
VANCOUVER, BC - MAY 31: Thousands attend a protest against racism and police brutality at the Vancouver Art Gallery on May 31, 2020 in Vancouver, Canada. (Photo by Mert Alper Dervis/Anadolu Agency via Getty Images)
AUCKLAND, NEW ZEALAND - JUNE 01: (This image has been converted to black and white.) Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States follo...
VANCOUVER, BC - MAY 31: Thousands attend a protest against racism and police brutality at the Vancouver Art Gallery on May 31, 2020 in Vancouver, Canada. (Photo by Mert Alper Dervis/Anadolu Agency via Getty Images)
AUCKLAND, NEW ZEALAND - JUNE 01: Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of an unarmed black man George Floy...
AUCKLAND, NEW ZEALAND - JUNE 01: UFC fighter Israel Adesanya joins in the protest down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of ...
AUCKLAND, NEW ZEALAND - JUNE 01: A protestor marches down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of an unarmed black man George F...
AUCKLAND, NEW ZEALAND - JUNE 01: Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of an unarmed black man George Floy...
AUCKLAND, NEW ZEALAND - JUNE 01: Protestors march down Queen Street on June 01, 2020 in Auckland, New Zealand. The rally was organised in solidarity with protests across the United States following the killing of an unarmed black man George Floy...
VANCOUVER, BC - MAY 31: Thousands attend a protest against racism and police brutality at the Vancouver Art Gallery on May 31, 2020 in Vancouver, Canada. (Photo by Mert Alper Dervis/Anadolu Agency via Getty Images)
Motorists are ordered to the ground from their vehicle by police during a protest on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued following the death of George Floyd, who died after being restrained by Minnea...
LONDON, ENGLAND - JUNE 01: Protesters take part in a 'Black Lives Matter' demonstration on June 01, 2020 in London, England. Protests and riots continue across American following the death of George Floyd, who died after being restrained by Minn...
A protester reacts after being hit by pepper spray from police as their group of demonstrators are detained prior to arrest at a gas station on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued sparked by the deat...
A protester reacts after being hit by crowd dispersal rounds as a group of demonstrators are detained prior to arrest at a gas station on South Washington Street, Sunday, May 31, 2020, in Minneapolis. Protests continued sparked by the death of G...
EDITORS NOTE: Graphic content / A worker removes graffiti near the White House after a third night of violent protests over the death of George Floyd June 1, 2020, in Washington, DC. - Police fired tear gas outside the White House late Sunday as...
LONDON, ENGLAND - JUNE 01: Protesters take part in a 'Black Lives Matter' demonstration on June 01, 2020 in London, England. Protests and riots continue across American following the death of George Floyd, who died after being restrained by Minn...
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