2, pts. 1, 2; Strickland v. Maddox, 4 Ga. 394. The term “collateral” is also applied in England to an issue raised upon a plea of diversity of person, pleaded by a criminal who has been tried and convicted, in bar of execution, viz., that he is not the same person who was attainted, and the like. 4 Bl. Comm. 396.