JUS NECESSITATIS

jus necessitatis (j<<schwa>>s n<<schwa>>-ses-i-tay-tis), n.[Latin] A person’s right to do what is required for which no threat of legal punishment is a dissuasion. • This idea implicates the proverb that necessity knows no law (necessitas non habet legem), so that an act that would be objectively understood as necessary is not wrongful even if done with full and deliberate intention.

[Blacks Law 8th]