 The company also reportedly used physical intimidation against union organizers, hiring a strike-breaking agency and infiltrating the unions themselves.The Illinois Federation of Labor forced a grand-jury investigation into Brown in 1935, after a union representative was almost tarred and feathered.There were no resultant indictments, although the Regional Labor Board in St. Louis did later issue a complaint, where they cited Brown for intimidation of employees using agents and officers, and unfair labor practices.