exterritorialit

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
EXTERRITORIALITY. This term is used by French jurists to signify the 
immunity of certain persons, who, although in the state, are not amenable to 
its laws; foreign sovereigns, ambassadors, ministers plenipotentiary, and 
ministers from a foreign power, are of this class. Foelix, Droit Intern. 
Prive, liv. 2, tit. 2, c. 2, s. 4. See  Ambassador; Conflict of Laws; 
Minister. 
    

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