Police from several agencies in southwest Washington, the Washington State Patrol and Burlington Northern Santa Fe responded to the violence to secure the scene that followed a demonstration Wednesday.

“We’re not surprised,” Duscha said. “A lot of the protesters were telling us this in only the start.”

One sergeant was threatened with baseball bats and retreated, Duscha said. “One officer with hundreds of Longshoremen? He used the better part of discretion.”