Documents show NYPD infiltrated Black Lives Matter despite no knowledge of criminal activity

New York police officers infiltrated the Black Lives Matter organization during protests against police brutality. Now, new documents released by The Guardian show just how far the department went.

The information was made public thanks to a freedom of information lawsuit filed by a New York law firm. The documents shed light on how the NYPD monitored demonstrations in the city after the death of Eric Garner.

The unarmed black man died while being arrested by a New York officer in July 2014. Black Lives Matter activists demonstrated in the days and months that followed, mainly in New York City's Grand Central Station.

According to previous reports, undercover NYPD officers monitored those demonstrations in plain clothes. The Guardian's latest report confirms that.

The information released in the FOIA request also highlights email exchanges between police about BLM activity. Officers shared pictures and video of protests. The documents also show police had access to group text messages organizing demonstrations.

Some of the emails between officers singled out activists, labeling them as the "main protester." Other emails called the protests "peaceful" and "quiet."

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10 PHOTOS
Most iconic photos of Black Lives Matter movement since Ferguson
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Most iconic photos of Black Lives Matter movement since Ferguson
FERGUSON, MO - AUGUST 17: Tear gas rains down on a woman kneeling in the street with her hands in the air after a demonstration over the killing of teenager Michael Brown by a Ferguson police officer on August 17, 2014 in Ferguson, Missouri. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his August 9, death. (Photo by Scott Olson/Getty Images)
A demonstrator protesting the shooting death of Alton Sterling is detained by law enforcement near the headquarters of the Baton Rouge Police Department in Baton Rouge, Louisiana, U.S. July 9, 2016. REUTERS/Jonathan Bachman TPX IMAGES OF THE DAY
FERGUSON, MO - AUGUST 11: Police force protestors from the business district into nearby neighborhoods on August 11, 2014 in Ferguson, Missouri. Police responded with tear gas and rubber bullets as residents and their supporters protested the shooting by police of an unarmed black teenager named Michael Brown who was killed Saturday in this suburban St. Louis community. Yesterday 32 arrests were made after protests turned into rioting and looting in Ferguson. (Photo by Scott Olson/Getty Images)
ST LOUIS, MO - OCTOBER 12: A demonstrator protesting the killings of 18-year-olds Michael Brown by a Ferguson, Missouri Police officer and Vonderrit Myers Jr. by an off duty St. Louis police officer gets help after being maced by police on October 12, 2014 in St Louis, Missouri. The St. Louis area has been struggling to heal since riots erupted in suburban Ferguson following Brown's death. (Photo by Scott Olson/Getty Images)
PHILADELPHIA, PA - DECEMBER 3: A demonstrator cries while gathering in Philadelphia to protest the Eric Garner grand jury decision during a Christmas Tree lighting ceremony at City Hall December 3, 2014 in Philadelphia, Pennsylvania. Organizers called for the demonstration after a grand jury in the Staten Island borough of New York City declined to indict the police officer who used a chokehold on Garner, resulting in his death. (Photo by Mark Makela/Getty Images)
FERGUSON, MO - NOVEMBER 25: Police confront demonstrators during a protest on November 25, 2014 in Ferguson, Missouri. Yesterday protesting turned into rioting following the grand jury announcement to not indict officer Darren Wilson in the Michael Brown case. Brown, an 18-year-old black man, was killed by Darren Wilson, a white Ferguson police officer, on August 9. At least 12 buildings were torched and more than 50 people were arrested during the night-long rioting. (Photo by Scott Olson/Getty Images)
BLOOMINGTON, MN - DECEMBER 20: Thousands of protesters from the group 'Black Lives Matter' disrupt holiday shoppers on December 20, 2014 at Mall of America in Bloomington, Minnesota. (Photo by Adam Bettcher/Getty Images)
A police officer stands over activists, demanding justice for the death of Eric Garner, as they stage a 'die-in' during rush hour at Grand Central Terminal in the Manhattan borough of New York on December 3, 2014. A New York City grand jury on Wednesday returned no indictment against a white police officer who used a chokehold on an unarmed black man who died as police tried to arrest him for illegally selling cigarettes, local media reported. The grand jury in the city's borough of Staten Island decided against criminal charges for New York police officer Daniel Pantaleo in the death of Eric Garner. The deadly encounter on July 17 was captured on a video that quickly spread over the Internet and helped fuel debates about how U.S. police use force, particularly against minorities. REUTERS/Adrees Latif (UNITED STATES - Tags: CIVIL UNREST POLITICS TPX IMAGES OF THE DAY TRANSPORT)
A man protesting the shooting death of Alton Sterling is detained by law enforcement near the headquarters of the Baton Rouge Police Department in Baton Rouge, Louisiana, U.S. July 9, 2016. REUTERS/Jonathan Bachman TPX IMAGES OF THE DAY
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This could be bad for the department. Its own guidelines prohibit the investigation of political groups unless there's knowledge that the group has committed a crime or plans to do so.

In the entire surveillance document dump, there's only one mention of an arrest, raising questions as to why the department continued the surveillance.

As of Tuesday evening, the department had not made a statement about the documents.

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