Three Portlanders who sustained injuries during a 2018 protest have joined together to sue the City of Portland and Portland Police Bureau (PPB) officers, accusing the city of allowing its officers to use violent, unnecessary tactics to muzzle the demonstrators' free speech. "The City of Portland has a custom and practice of using militarized force against protestors," reads the complaint, filed Monday. "When force is used, PPB makes no effort to limit its force to.