...[the Act] inflicted a punishment of three months' imprisonment, with hard labour, on any one who attempts to coerce another for trade purposes by the use of personal violence; by such threats as would justify a magistrate in binding a man to keep the peace; or by persistently following a person about from place to place, hiding his tools, clothes, or other property, watching and besetting his house, or following him along any street or road with two or more other persons in a disorderly manner. These last clauses were directed against the practice of picketing...[2]
