Deut. 22:28-29 was not meant to be limited to the land of Israel under the Old Covenant.This passage does not order capital punishment in the case where a young man forcibly seduces a young girl, but commands him to marry her. This law was clearly being followed to the letter in Genesis 34:1ff., which concerns the relations between Shechem and Dinah. Because Simeon and Levi broke the not-yet-written law, Jacob condemned their actions (Gen. 49:5-7).
From AmericanVision.org: "Paul Robert's Justice Lifts the Nations is on the stairway in the Old Supreme Court Building in Lausanne where the judges had to pass each time before going to try a case. Robert wanted to remind them that the place which the Reformation gave to the Bible provided a basis not only for morals but for law."