prosecution’s case in chief Mr. Sutton testified that he gave Avery some shotgun shells. Avery denied this when he testified on his own behalf. Bolton, called in rebuttal, testified that he heard Avery ask Sutton for the shells. Although his testimony might properly have been part of the prosecution’s case in chief, it was allowable as additional evidence upon a point put into dispute by Avery’s testimony. (See 6 Wig-more on Evidence, 3d ed., p. 516.)
As a further argument it is contended that Bolton’s testimony should have been excluded as being incompetent since he stated that he could not positively identify Avery as the man who asked Sutton for the shells. Bolton testified that he observed the incident about which he testified. His testimony, therefore, was not incompetent under section 1845 of the Code of Civil Procedure. The uncertainty of his recollection or his lack of positiveness about the identity of the persons involved went to the weight and not to the competency of this evidence. (People v. Rolfe, 61 Cal. 540; People v. Harris, 87 Cal.App.2d 818, 824 [198 P.2d 60].)
Prejudicial misconduct is charged against the trial court when the judge said (in commenting on the admissibility of Bolton’s testimony): “He [Bolton] says he thinks [the person he saw] is the defendant. ” It is argued that the record does not show that Bolton said he thought Avery was the man. The following transcript of the record sufficiently answers the contention:
“Q. Do you know this gentleman [Avery] standing up? A. No, sir.
Q. Have you ever seen him before ? A. I think I have.
Q. And do you remember where and when you saw him? A. I know where. It was on a Sunday afternoon.”
Error is assigned on the court’s refusal to let Mr. Frye testify as an expert on behalf of the defendant on the question whether the firing-pin marks upon some shotgun shells were similar.' The evidence was rejected on the ground that the jurors could make the same visual observation of the marks as could the witness. Frye testified that an expert would require a high-powered magnifying glass to detect differences in the marks and that he himself could not detect differences because he was not an expert. The ruling was correct.
Later, in explaining the ruling on the firing-pin marks, the court said: “. . . it was obvious he [Frye] could not tell without a microscope whether they [the marks] were different or not.” The court’s remark is assigned as misconduct. The