A letter containing an unknown substance prompted a partial shutdown at the Westchester County Courthouse Wednesday afternoon, leading New York State court officers to request assistance from the Hazardous Devices Unit. No threats or hazardous materials turned up, and officials later cleared the scene, pointing to a mundane culprit: stray adhesive or correction fluid.
According to News12 Westchester, court officers received the letter through the mail and, per Westchester County Police, requested assistance from the hazardous devices unit around noon. The courthouse scare prompted a partial shutdown while investigators worked to figure out exactly what was inside the envelope.
Investigators ultimately determined the substance was not hazardous, and police reported finding no threats or dangerous materials at the scene, the station's report notes. Officials believe the material may have simply been adhesive or correction fluid that flaked off the envelope during its trip through the mail. The scene was cleared shortly before 1:30 p.m., according to the same account.
Part of a Bigger Pattern of Mail Scares
The Westchester scare lands amid a wave of similar incidents striking government buildings across the country. The FBI and U.S. Postal Inspection Service are investigating a series of suspicious mailings containing an unknown substance sent to state officials and election offices nationwide, as reported by theguardian.com. Election offices in at least 15 states had reported receiving or being the intended target of suspicious mail as of Thursday evening, per abcnews.com, which also cited law enforcement sources estimating that more than 100 such letters were circulating through the postal system.
abcnews.com reported that the FBI, U.S. Capitol Police and U.S. Postal Inspection Service have been investigating multiple letters containing suspicious substances mailed to addresses nationwide, including congressional offices, with the FBI confirming those mailings contained an unknown substance. In several cases documented by theguardian.com, the scares played out almost identically to Westchester's: election officers in Louisiana and Oklahoma received envelopes containing a powdery substance that led to evacuations, while an envelope sent to the Arizona secretary of state triggered a hazmat and law-enforcement response along with evacuations at the state capitol.
Past False Alarms Point to Harmless Substances
History suggests these scares often end the same way Westchester's did. Authorities determined the substance mailed to the Oklahoma state capitol complex was nonhazardous, theguardian.com reported, and a white powder sent to Illinois Treasurer Maria Pappas was later identified as baking powder. During the 2024 election, at least 14 election offices across the country received mail containing white powder, and in 2023, election offices in six states also received mail containing white powder, with some samples found to contain trace amounts of fentanyl, according to theguardian.com.
Not every case has been accidental. A man was charged with allegedly sending letters containing a white granular substance to four members of Congress, letters that turned out to contain salt, per abc7ny.com. Investigators in that case found the alleged sender's own return address on the letters and discovered a fifth envelope addressed to one of the lawmakers' Washington, D.C. offices during a search of his home, the outlet reported. It remains unclear whether the Westchester letter is connected to any broader pattern, and no information has been released about who sent it.
