The defendant's appeal is dismissed.

1. The summary of the reasons for appeal (six months of imprisonment) by the lower court is too unreasonable.

2. The crime of this case committed by the defendant as a witness in his criminal trial against the co-defendant A, and the perjury of A did not have a critical effect on the result of the trial.

Even if the perjury is a serious crime that obstructs the proper exercise of the judgment authority, which is a judicial action of the country, and the discovery of substantial truth, it is necessary to punish the principal offender. In addition, if the various circumstances, such as the motive and circumstance of the crime in this case, the defendant's age, character and conduct, environment, etc., are taken into account, it cannot be said that the sentence imposed by the court below is too heavy.

3. In conclusion, the defendant's appeal is dismissed in accordance with Article 364 (4) of the Criminal Procedure Act since it is without merit. It is so decided as per Disposition.