Instances of definite banishment are what one would not expect to find frequent in any system of legislation. In banishment, the object in general is to get rid of the malefactor; and what becomes of him afterwards is not minded. If it were an object of choice with the Government, what country the delinquent should betake himself to, the circumstances that could not but serve to determine such a choice would naturally be such as were of a temporary nature. This, accordingly, was the case with an Act of the British Parliament, which furnishes the only instance that occurs to me of a punishment of this nature. By statute 20 George II, c. 46, the king is empowered to commute the punishment incurred by persons engaged in the late rebellion, into transportation to America, and the persons thus dealt with are made subject to the pains of capital felony, not only as usual in case of their returning to any part of Great Britain or Ireland, but besides that, in case of their going into any part of the dominions of France or Spain, nations with who the British was then at war.
RP Book 2 Chapter 8