News Suspicious powder at Brooklyn supreme court building was not toxic, officials say First responders were called to 360 Adams St. around 11:45 a.m., police said. Authorities responded to the Kings County Supreme Court building, located at 360 Adams St. in Brooklyn, for an investigation into a suspicious powder on the 11th floor Monday, police said. Photo Credit: Google Maps By Lauren Cook firstname.lastname@example.org @L_Cook865 Updated March 12, 2018 3:56 PM Print Share fbShare Tweet gShare Email Authorities investigating a suspicious powder at the Brooklyn supreme court building on Monday have deemed the substance nontoxic, according to police and fire officials. First responders were called to 360 Adams St., which is the address for the Kings County Supreme Court, around 11:45 a.m. to investigate a suspicious white powder on the 11th floor, the officials said. One person who came into contact with the powder was evaluated at the scene, according to an FDNY spokeswoman. Officials who tested the powder said it was not toxic and the area was given the all-clear by police Monday afternoon, an NYPD spokeswoman said. It remains unclear what the white powder was made of. The building was not evacuated during the incident, according to the FDNY spokeswoman. By Lauren Cook email@example.com @L_Cook865 Lauren joined amNY.com as a news editor in 2016. Previously, she worked as a web producer at CBS New York and News 12. Share on Facebook Share on Twitter Comments Comments section is temporarily on hold. Here’s why.