Undercover officers in the New York police department infiltrated small groups of Black Lives Matter activists and gained access to their text messages, according to newly released NYPD documents obtained by the Guardian. The records, produced in response to a freedom of information lawsuit ... provide the most detailed picture yet of the sweeping scope of NYPD surveillance during mass protests over the death of Eric Garner in 2014 and 2015. Lawyers said the new documents raised questions about NYPD compliance with city rules. The documents, mostly emails between undercover officers and other NYPD officials, follow other disclosures that the NYPD regularly filmed Black Lives Matter activists and sent undercover personnel to protests. In one email, an official notes that an undercover officer is embedded within a group of seven protesters on their way to Grand Central Station. This intimate access appears to have helped police pass as trusted organizers and extract information about demonstrations. In other emails, officers share the locations of individual protesters at particular times. Throughout the emails, the NYPD's undercover sources provide little indication of any unlawful activity. "The documents uniformly show no crime occurring, but NYPD had undercovers inside the protests for months on end as if they were al-Qaida," said David Thompson, an attorney of Stecklow & Thompson, who helped sue for the records.