(Willamette Week) Portland Police Chief Mike Marshman said today that riot cops pushed antifascist and anarchist protesters out of downtown parks June 4 after the protesters used slingshots to launch balloons filled with urine, feces and unknown chemicals into police ranks.

Marshman also told Mayor Ted Wheeler in an open letter that much of the smoke seen as officers cleared Chapman Square wasn’t released by police but by the left-wing protesters themselves. He says protesters “may have been using ‘gopher gassers,’ small rodent poison gas devices.”

Marshman’s allegations come in a response to Wheeler’s June 13 list of five questions that demanded an accounting for police tactics at the dueling June 4 protests in downtown Portland.

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