Judicial misjudgments are inevitable. The criminal retrial system, as the errorcorrection procedure filed for the interests of the convicted after final judgments, should have no restrictions on its period of statute of limitation. The newly amended Art. 420, Para. 1, Subpara. 3 and Para. 3 of the Code of Criminal Procedure greatly expanded the scope of “new evidence” to those that hadn’t been substantially considered during final judgments. In this context, the necessity of Art. 421, which is similar to Art. 420, has become a new question. In addition, whether the new scope of “new evidence” includes those filed against the interests of the convicted and how to apply in practice still require further discussion. This article will begin with explanations for the Supreme Court’s reactions to the new regulation and then illustrate how judicial practice inappropriately applies the law with cases. In conclusion, the author will bring up suggestions for how to amend evidence investigations in retrial procedures.