Police are investigating , say `` a police report with multiple complainants has been filed '' Police activist Jeff Roorda says he was exercising free speech ; one alderman says Roorda was trying to provoke response . The Chicago Tribune reports that the incident occurred at about 12:30 p.m. on Saturday when an officer approached Roorda's group and asked them if they were planning any violence.
Police are investigating , say `` a police report with multiple complainants has been filed '' Police activist Jeff Roorda says he was exercising free speech ; one alderman says Roorda was trying to provoke response . Roorda and a female protester appear to get into a scuffle in online video .