Armed Forces Disciplinary Punishment Act Article 38

The investigation officer shall conduct the investigation in accordance with this Act or related statutes or regulations. Evidence shall not be obtained by any illegal practice or improper method.The evidence obtained by illegal practice or other improper methods in conducting the investigation is not admissible for the establishment of the disciplinary offense. Nonetheless, in case the state of illegitimacy or improperness in obtaining evidence is minor, yet the exclusion of such evidence constitutes an obvious inconsistency with the national defense, military, or public interest, the exclusion rule does not apply.