WEST CHESTER, PA — Federal and Chester County investigators are examining a suspicious substance found inside an unopened mail ballot envelope Friday after the discovery triggered a hazardous materials response, temporarily shut down a county government building and disrupted election operations just days before Tuesday’s election, according to reporting by 6abc/WPVI.
The incident occurred at the Chester County Government Services Center, 313 W. Market St., where a Voter Services employee processing returned mail ballots felt an unusual, non-liquid material through an envelope.
The employee did not open the envelope and called 911, prompting authorities to close the building and isolate nearby workers while a county hazardous materials team assessed the potential threat.
Chester County District Attorney Christopher de Barrena-Sarobe described the discovery in an interview with 6abc/WPVI.
“It looks like a mail-in ballot, that’s what I will tell you. The person could feel the weight and something else inside of it,” de Barrena-Sarobe told the television station.
The hazardous materials team examined the area for chemical and biological threats and determined within approximately 45 minutes that neither was detected.
“Everything went according to protocol. Employees in the vicinity were isolated and monitored for their safety. The building was immediately shut down by the sheriff’s department,” de Barrena-Sarobe told 6abc.
The building reopened within 90 minutes, and no injuries or exposures were reported.
The envelope was transferred unopened to the FBI for additional laboratory analysis. Chester County detectives and federal agents are jointly investigating the incident, including whether the envelope arrived through the mail or was deposited in a county ballot drop box.
Investigators are coordinating with the U.S. Attorney’s Office and examining possible connections to other suspicious-mail incidents.
Those include an envelope targeting U.S. Rep. Donald Norcross, a New Jersey Democrat, earlier in October.
“I’m really familiar with that because we have strong federal partners in Chester County. I actually got a briefing over the weekend from the FBI when that incident happened. We’re still looking at those connections. I don’t know of one right now,” de Barrena-Sarobe told 6abc.
The investigation follows an October 23 federal alert concerning suspicious substances received by election offices and other organizations nationwide. At the time of that alert, authorities had not identified hazardous materials in those incidents.
The Chester County incident interrupted election services for approximately three hours before operations resumed Friday afternoon.
Speaking with 6abc, Maxwell emphasized the county’s preparations for election-related emergencies.
“You have to be ready for anything these days. We activate our emergency operations center every single election,” Maxwell stated.
De Barrena-Sarobe also indicated that county personnel had participated in an emergency drill involving a similar scenario approximately one month before the incident.
With Tuesday’s election approaching, county officials emphasized maintaining voting operations while investigators determine the circumstances surrounding the suspicious envelope.
“No matter how you are voting, we just want you to vote,” de Barrena-Sarobe told 6abc.
The FBI’s laboratory examination and the joint investigation remain central to determining what was inside the envelope and how it entered the county’s ballot-processing system.
For additional reporting and interviews with Chester County officials, read the full 6abc/WPVI article at https://6abc.com/post/hazmat-teams-responds-report-possible-suspicious-powder-county-building-west-chester-pennsylvania/20000058/.
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