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UpdatePennsylvaniaFriday, October 30, 2026

FBI investigating suspicious substance in Pennsylvania ballot envelope

What happened when an election worker found an unidentified substance in a mail ballot envelope in Chester County.

Reporting by
CBS News
“FBI investigating after suspicious substance found in Pennsylvania ballot envelope”, Friday, October 30, 2026
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What happened

An election worker in West Chester, Pennsylvania, found an unidentified substance inside a mail-in ballot envelope on October 30. The discovery prompted a lockdown and hazmat response at the Chester County government building on Market Street. The building reopened within about 90 minutes and election processes were paused for roughly three hours.1

The envelope was turned over to the FBI for testing, with the DA's office and FBI conducting a joint investigation. Chester County District Attorney Christopher de Barrena-Sarobe said the envelope has not been opened and it remains unclear whether the ballot was mailed in or placed in a drop box.1

90 minutes
time until building reopened1
three hours
time election processes were paused1

Key dates in Pennsylvania

Election Day in 2 days
  1. Mon, Oct 19 · passed
    Registration deadline
  2. Tue, Oct 27 · passed
    Last day for mail ballot applications
  3. Tue, Nov 3 · 2 days
    Election Day; Mail ballots must arrive
  4. Mon, Nov 23 · 22 days
    County/Local certification

Every date in Pennsylvania, and who certifies the election

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