factually
Index/Topics/HC Smoke Grenade Use in Portland 2020

HC Smoke Grenade Use in Portland 2020

The use of hexachloroethane (HC) smoke grenades by federal agents during the Portland deployments of summer-fall 2020, specifically tied to Operation Diligent Valor.

Fact-Checks

1 result
Jan 19, 2026

Is there documented evidence tying HC smoke grenade use to specific named federal operations in 2020 beyond Portland?

Independent researchers and journalists produced a substantial body of evidence documenting hexachloroethane (HC) “Maximum HC” smoke grenade use by federal agents during the Portland deployments of su...