The Military Judge’s Benchbook (MJBB) is the bible for how a military judge will instruct the members of your court-martial under the UCMJ. Your military defense lawyer should be well versed in this book and these instructions. The military judge will tell the members what elements of the crime must be proved beyond reasonable doubt; she will tell them about how they may consider evidence presented in court; and she will tell them the voting procedures they must follow to ensure a secret written ballot without undue command influence.
Military appellate courts are not enthused with deviations from the MJBB, even though it is quite possible to do that. Oddly, the military court of criminal appeals allow for minor deviations and don’t actually require exacting compliance with the MJBB. See for example, United States v. Bigelow, 57 M.J. 64 (C.A.A.F. 2002). On the other hand the Court of Appeals for the Armed Forces {CAAF) has cautioned against significant deviations from the MJBB, unless adequately explained on the record. United States v. Rush, 54 M.J. 313 (C.A.A.F. 2001). That’s what happened with the litigation over challenges to Article 120, when a military judge ignored the law and also the MJBB, and advised the members that the accused did not have any burden to prove consent.
It may not matter if the judge does not follow the MJBB when instructing the members. For example in a recent case the Court of Appeals for the Armed Forces (CAAF) decided that the judge had made a mistake in not instructing on a defense, but that the error was harmless. We don’t need to go too deep into this area of trial practice; this is something your appellate military defense lawyer and trial military defense lawyer should know about and discuss with you.