*370Opinion of the Court
FLETCHER, Chief Judge:This case warrants reversal. During his instructions to the court members regarding findings, the military judge hesitated mid-sentence to say to the jury “. would one of you nudge Colonel Rabin there.” Subsequently, the following notation was made in the authenticated record: “(Lieutenant Colonel Carlson nudged Lieutenant Colonel Rabin to wake him up.)” However, no motion for a mistrial nor objection was made by the defense counsel. Subsequent to trial, the defense counsel asserted in an affidavit that the juror was sleeping while the military judge was giving his instructions.
Appellate defense counsel’s copy of the record of trial, which was authenticated on November 19, 1974, contains the notation set forth and the signature of the military judge. The original record of trial, however, contains no such notation while likewise signed by the authenticator. The obvious discrepancy was explained by the court reporter in the following words from a post-trial affidavit:
In the record of trial, I made a notation which read, “. . . (LTC Carlson nudged LTC Rabin to wake him up).” The military judge, when reading the record, told me to delete the words, “to wake him up”, as I am not in a position to say that he was sleeping. I agreed with him on that and deleted the words, “to wake him up”, along with making the other usual corrections in the record of trial. At the time when I was making the corrections, one of the copies of the record of trial was in the hands of the lawyer who was doing the review. I did not get a hold of that copy, and therefore failed to make the corrections in that copy. The original and its three other copies were corrected appropriately.
We must reiterate the rule requiring absolute verity and reliability of records and judgments of the trial court. United States v. Galloway, 2 U.S.C.M.A. 433, 9 C.M.R. 63 (1953). The direction of the military judge to alter the authenticated record without notice to the defense counsel was improper and an injury to the integrity of the military justice system. This action, except for the fortuitous survival of an unaltered copy of the record, would have deprived appellant and this Court of an informed review of the court member’s behavior. Those charged with authentication must recognize their extremely important responsibilities. See United States v. Cruz-Rijos, 24 U.S.C.M.A. 271, 51 C.M.R. 723, 1 M.J. 429 (1976). In the words of Senior Judge Ferguson, “If we cannot be sure the records before us are authentic, our review is meaningless . . . ” United States v. Harris, 21 U.S.C.M.A. 123, 130, 44 C.M.R. 177, 184 (1971). We will not allow any situation which raises such doubts.
We agree with the appellate defense counsel that it is the obligation of the court member to be both attentive and dignified.1 In commenting on the trial proceedings, the Army Court of Military Review observed “[t]hat the court member involved may have been inattentive to some extent can be inferred from the military judge’s action in directing that he, the court member, be nudged.” We believe that the facts of this case demonstrate, at the very least, inattentiveness.
Unfortunately, the apparent inattention of the court member transpired during a vital stage of the proceedings, i. e., the military judge’s instructions on findings. Not only must the military judge instruct court members, but failure to instruct is error as a matter of law. United States v. Buchana, 19 U.S.C.M.A. 394, 41 C.M.R. 394 (1970); United States v. Lucas, 1 U.S.C.M.A. 19, 1 C.M.R. 19 (1951). The duties of the military judge in instruction of members are multiple: to aid understanding of terms of art;2 to instruct on *371elements of offense,3 defenses,4 and corroboration; 5 to tailor instructions to fit circumstances of the offense charged;6 and to insure that instructions are consistent.7
Concomitant with these judicial duties of proper instruction are the duties of the fact finder to attentively embrace and employ the legal guidelines received from the military judge. The most perfect instructions are inconsequential if they fall upon inattentive ears. Uninformed court members cannot be allowed to circumvent the right of an accused to a fair trial.
We are aware of the necessity for prudent defense counsel action upon notice of a juror’s inattentiveness. While defense counsel may not sew a defect into the proceedings by failure to bring the inattentiveness to the court’s attention,8 we have long held he need not risk offending a court member in order to preserve error for appellate review. United States v. Smith, 6 U.S.C.M.A. 521, 20 C.M.R. 237 (1955). But here, in point of fact, the military judge’s action manifested the court’s cognizance of the member’s inattention.
We do not view the defense counsel's failure in this situation to, in an Article 39(a)9 session, move for mistrial, challenge the inattentive member, or request a reiteration of the instructions as a waiver of the error. Defense failure to object at trial does not waive a denial of a fair trial or a violation of due process of law. United States v. Stringer, 4 U.S.C.M.A. 494, 16 C.M.R. 68 (1954). Indeed, it is the duty of the military judge to guarantee that the trial is conducted fairly. United States v. Graves, 23 U.S.C.M.A. 434, 50 C.M.R. 393, 1 M.J. 50 (1975). Here, notwithstanding evidence of a juror’s inattention during the essential instructions on findings, the military judge failed to take remedial action to cure the error. For this reason we must reverse. Because of this disposition, we do not address assignment of error IV of appellate defense counsel.10
The decision of the U.S. Army Court of Military Review is reversed, and the findings and sentence are set aside. The record of trial is returned to the Judge Advocate General of the Army. A rehearing may be ordered.
. Paragraph 41b, Manual for Courts-Martial, United States, 1969 (Revised edition).
. Paragraph 73a, MCM, 1969 (Rev.).
. United States v. Clay, 1 U.S.C.M.A. 74, 1 C.M.R. 74 (1951).
. United States v. Martinez, 20 U.S.C.M.A. 228, 43 C.M.R. 68 (1970).
. United States v. Shider, 20 U.S.C.M.A. 347, 43 C.M.R. 187 (1971).
. United States v. McAlister, 18 U.S.C.M.A. 532, 40 C.M.R. 244 (1969).
. United States v. Harrison, 19 U.S.C.M.A. 179, 41 C.M.R. 179 (1970).
. United States v. Curry, 471 F.2d 419 (5th Cir. 1973), cert. denied, 411 U.S. 967, 93 S.Ct. 2150, 36 L.Ed.2d 688 (1973); United States v. Carter, 433 F.2d 874 (10th Cir. 1970).
. Article 39(a), Uniform Code of Military Justice, 10 U.S.C. § 839(a).
. Assigned errors I and II dealt with the separate facets of the problem we discussed in the text. Assigned error IV concerned a defense to the charge of failure to repair which may be considered by the parties in the event of a rehearing.