(a) The Governor, before directing the trial of any charge by general court-martial, shall refer the charges and all allied papers to the state judge advocate for consideration and advice. The state judge advocate shall not recommend a general court-martial unless he has found that the charge alleges an offense under this article and is warranted by evidence indicated in the report of investigation.

(b) If the charges or specifications are not formally correct or do not conform to the substance of the evidence contained in the report of the investigating officer, formal corrections and such changes in the charges and specifications as are needed to make them conform to the evidence may be made.