This July 13, 2011, photo shows the apartment complex in New Brunswick, N.J., where an apartment was rented by an undercover NYPD officer. On June 2, 2009, a building superintendent at the complex just off the Rutgers University campus called 911 after stumbling one of the NYPD’s biggest secrets – a safe house, a place where undercover officers working well outside the department’s jurisdiction could lay low and coordinate surveillance. The Associated Press has obtained a copy of the 911 call th