Hadid and another sergeant, Frank Garcia, were tasked with supervising a team of eight officers, who interviewed arrestees at precincts, at central booking, and in their homes, gathering intelligence on “travel routes, trends, patterns, tactics, techniques and procedures which may have a nexus to terrorism as well as information on criminal activity,” as one department report put it. The detectives wrote detailed chronologies of their lives, including the names and phone numbers of their relatives, and documented the contents of their wallets or pockets: bank statements, business cards, scraps of paper containing a MySpace password. They were just in shock.” Muslim arrestees were frequently asked to reveal the mosque where they prayed, and on which days; the schools their children attended; the airline they took when they arrived in America; how often they returned to their homeland; the jobs and addresses of family members back home; whether they’d gone on pilgrimage to Mecca or fasted on Ramadan. I mean, come on, we are supposed to be fighting terrorism.” Once, Hadid said, after his team interviewed a parolee at his home in Queens, a detective filed a debriefing report that drew attention to an Arabic video, “The Message,” resting on the man’s television stand. (Abdelal, the Egyptian-American officer who was fired in 2013, said that when he asked for a day off for Eid al-Fitr, whose date depends on the lunar calendar, his supervisor said, “What are you, a bunch of werewolves?”) Kargu’s defense attorney, Martin, told me that he was shocked to learn that Hadid had been indicted for perjury.