"picketing." YourDictionary, n.d. Web. 09 November 2018. <https://www.yourdictionary.com/picketing>.
picketing. (n.d.). Retrieved November 09th, 2018, from https://www.yourdictionary.com/picketing
picketing - Legal Definition
A common practice in labor
disputes, in which employees patrol with signs on their fronts and backs
(sandwich signs) or on wooden stakes held over their shoulders. Peaceful
picketing is protected as free expression, except where considered a threat to
public safety or when spreading false propaganda.