GOING WITNESS

from Bouvier's Law Dictionary, Revised 6th Ed (1856)
GOING WITNESS. One who is going out of the jurisdiction of the court, 
although only into a state or country under the general sovereignty; as, for 
example, if he is going from one to another of the United States; or, in 
Great Britain, from England to Scotland. 2 Dick. 454. 
    

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