Another justification in criminal law is that of necessity, often known as the choice of the lesser evil. Under necessity, it is argued that society is actually better off by breaking one law in order to avoid a worse fate. An example of this would be a private bulldozing company destroying a house to stop a fire from spreading.

People v. Unger
Borough of Southwark v. Williams
Commonwealth v. Hutchins
Commonwealth v. Leno
United States v. Schoon
Regina v. Dudley and Stephens

 
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