Maryland Petition Committee v. Johnson

How later courts describe this case

• admonishing against attempts “to relitigate on a fuller record preliminary injunction issues already decided” by the district court
• even where record would have supported a contrary determination, no abuse of discretion in declining to find bar because of unclean hands
• assault committed in course of running an illegal gaming table and illegal gambling same series of acts
• Use of improper means to obtain trade secrets is evidence of their confidentiality
• Fourteenth Amendment’s “age and usage” are “persuasive indicia” of valid ratification