The discipline and training of the Virginia National Guard shall conform to that of the Armed Forces of the United States, and to that end, the Manual for Courts-Martial, United States, including but not limited to the Uniform Code of Military Justice as now existing or subsequently amended, is hereby incorporated as a part of the military laws of Virginia except where in conflict with other provisions of this chapter. Officers and soldiers of the National Guard shall have such powers in the performance of their duty under this title as officers and soldiers of the active armed services have in the performance of like duty under the Uniform Code of Military Justice and Manual for Courts-Martial, United States. However, should a person commit an offense punishable under the criminal laws of Virginia, then prosecution under the criminal laws shall bar prosecution under this chapter. The Adjutant General shall by regulation adapt to state usage the provisions and terminology of the Manual for Courts-Martial, United States, including but not limited to the Uniform Code of Military Justice.