Defendants subpoenaed as witnesses seven of their fellow prisoners from the State’s Central Prison. These witnesses were kept by the Sheriff’s deputies in a room separate from the courtroom until each was called in turn to testify. At the commencement of the trial counsel for defendants moved that these witnesses be brought into the courtroom where they might hear the evidence. Defendants assign as error the court’s refusal to grant this motion.
[1, 2] In this State the segregation of witnesses during the course of a trial is a matter of discretion on the part of the trial judge, and the exercise of such discretion is not reviewable on appeal except in case of abuse. State v. Clayton, 272 N.C. 377, 158 S.E. 2d 557; State *515 v. Spencer, 239 N.C. 604, 80 S.E. 2d 670. This question is most frequently presented when one party makes a motion to have his adversary’s witnesses excluded or to have the witnesses “put under the rulé,” as the procedure is sometimes termed. In the present case the •defendants’ witnesses, being in the custody of the State, were already being held segregated from the courtroom, and the question •of whether they should be present in the courtroom throughout the course of the trial was presented by defendants’ motion that they be brought in. The fact that the question arose in a slightly different manner in this proceeding than is usually the case in no way changes the rule that the matter is one to be left within the sound discretion of the trial judge and is not reviewable except for abuse of discretion. There wás here no abuse of the trial judge’s discretion. The record shows that after denying defendants’ motion the court allowed ample time and opportunity for the defendants and their counsel to confer with each other and to confer with their witnesses. The segregation of these witnesses in no way handicapped defendants in fully presenting their testimony before the jury. Furthermore, in exercising his discretion the trial judge could properly consider the security problem which would have been created had he permitted such a large number of the State’s prisoners to be present in the courtroom at one time.
£3] Defendant’s second assignment of error is that the court’s charge to the jury was deficient, particularly as it related to the defense of alibi. In this connection, the court charged:
“Now, the defendants by their plea of not guilty, and their testimony, say that they are not guilty but they are also relying in part on what is known as an alibi; that is, which means literally, elsewhere; and when an accused or a defendant relies on an alibi he does not have the burden of proving it. It is incum-bant (sic) upon the State to satisfy the jury beyond a reasonable doubt on the whole evidence, that such defendant is guilty.' If the evidence of alibi in connection with all the other testimony in the case, leaves the jury with a reasonable doubt of the guilt of the accused, the State fails to carry the burden of proof imposed upon it by law, and the accused and each of them, of course, is entitled to an acquittal, that is a verdict of not guilty.”
This charge was almost verbatim in the form approved by the North Carolina Supreme Court in the case of State v. Spencer, 256 N.C. 487, 124 S.E. 2d 175. Defendants concede this, but nevertheless contend that the charge was here deficient in that the court did not *516apply the law of alibi to the defendants’ evidence with sufficient particularity. This contention is without merit. In addition to the above-quoted portion of the charge, the court in its recapitulation of the defendants’ evidence, pointed out that defendant Lovedahi had testified:
“. . . that he was not, had not assaulted Mr. Lufsey, at any time, and that on this particular occasion when the yelling took place that he was in another place, that he was up in the mess hall.”
With reference to the testimony of defendant Nolan, the court charged:
“And Mr. Edward Nolan testified in his own behalf, that he was in there in prison, as the court recalls, for some felony, armed robbery as the court recalls; and that on this particular occasion he was in C block and that he and Cecil Lovedahi and several others went down to supper about 4:30 that afternoon; and that they seated themselves at the first table in the white side, and that they were sitting there when they heard a commotion or somebody screaming; and that after they heard the screams that he, Mr. Nolan, Mr. Lovedahi got up and started down the hall towards C and D block and that there were ten or twelve inmates in the hall at that time; and he named the people that were sitting at the table with him or close to him, . .
In addition to denying vigorously that they had in any way participated in the assault on Terry Lursey, defendants sought to create in the minds of the jurors a reasonable doubt as to their guilt, by testifying that they were not in the corridor when the assault occurred but at that time were seated in the prison dining hall eating supper. Their witnesses testified to the same effect. The defendants are dissatisfied that the jury did not believe them or their witnesses. An examination of the entire charge of the court, however, reveals that the jury was correctly instructed on the law of alibi and that this law was related to the defendants’ evidence with sufficient particularity for the jury to have obtained a clear understanding of its significance in the case before them.
In the entire trial we find
No error.
BhocK and Britt, JJ., concur.