Defendant assigns as error the trial court’s denial of his motion to suppress evidence of certain experiments conducted with the pistol which inflicted the fatal wound. His objection was predicated upon the grounds (1) that the experiments were not performed under conditions substantially similar to the conditions prevailing at the time of the fatal incident and (2) that there was no evidence to indicate that the weapon was in substantially the same condition at the time of the experiments as it was at the time of the shooting.
The evidence with regard to the experiments tends to show the following facts:
C. D. Eggers, a member of the Sheriff’s Department of Cabarrus County, testified that he first saw the .32 caliber Colt pistol in question lying on the table in the den portion of defendant’s premises on the night of the alleged murder. Defendant acknowledged to the officer that the gun was his and that it was the weapon which had shot his wife. Eggers produced a photograph which showed the gun lying on the table in the den.
Glenn Mauer, a firearms identification specialist stipulated to be an expert in the field of firearms identification and ballistics, testified that Officer Eggers delivered the weapon to him in Richmond, Virginia, on 3 August 1971, some 17 days after the alleged murder. On 5 August, Mauer conducted the tests in question. On cross-examination, Mauer stated that he was unable *90 to say whether the gun was in substantially the same condition on 3 August as on 17 July. After testifying that the pistol had both a thumb-level safety and a grip safety, he testified that he dropped the gun from heights of six inches, twelve inches, and up through forty-two inches, respectively, onto the wooden floor approximately one half to three quarters of an inch thick. The pistol would not fire. The witness stated that he did not know the kind of surface upon which the gun had dropped at the time of the shooting. After conducting these initial tests, he then placed tape around the grip safety of the firearm so as to make the safety ineffective and observed that it did not fire when dropped from a distance of twelve inches, but that it did fire when dropped from a height of eighteen inches. At the time he dropped the gun onto the wooden surface, there was only one bullet in the pistol, and he conceded that the gun might have been somewhat heavier if it had been fully loaded. •
Mr. Eggers, recalled, testified that an Officer Ward, who at the time of the trial was an unavailable witness, delivered the pistol to him at the time of the fatal occurrence and that he did not, at that time, perform any tests on the bullet or the gun.
One of the best statements by this Court on the question of admissibility of experimental evidence is found in
State v. Phillips,
The competency of experimental evidence depends upon its trustworthiness to aid in the proper solution of the problem in hand. [Citations omitted.] When the experiment is carried out under substantially similar circumstances to those which surround the original transaction, and in such a manner as to shed light on that transaction, the results may be received in evidence, although such experiment may not have been performed under precisely similar conditions as attended the original occurrence. The want of exact similarity would not perforce exclude the evidence, but would go to its weight with the jury. [Citations omitted.] Whether the circumstances and conditions are sufficiently similar to render the results of the experiment com *91 petent is of course a preliminary question for the court, and unless too wide of the mark, the ruling thereon will be upheld on appeal. [Citations omitted.]
“The general rule as to the admissibility of the result of experiments is, if the evidence would tend to enlighten the jury and to enable them to more intelligently consider the issues presented and arrive at the truth, it is admissible. The experiment should be under circumstances similar to those prevailing at the time of the occurrence involved in the controversy. They need not be identical, but a reasonable or substantial similarity is sufficient.” — Edwards, J., in Shepherd v. State,51 Okla. Crim., 209 ,300 P., 421 .
True it is, unless the requirement of substantial similarity exist, or be duly observed, the experimental evidence should be rejected. [Citations omitted.] This is largely a matter to be decided in the light of all the attendant facts and circumstances. The measure of permissible variation in the conditions of the experiment from those of the occurrence is usually determined by whether such variation would tend to confuse or to mislead the jury. The object of every trial is to find the truth of the matter in controversy. If the experimental evidence contribute to this end, it is admissible; otherwise it should be excluded. [Citation omitted.]
Accord: State v. Atwood,
In
State v. Holland,
The Court, holding that the failure to move to strike was a Waiver of the defendant’s exception, nevertheless stated:
. . . Such experiments and evidence as to the result thereof are relevant. [Citations omitted.] “Whether or not evidence of experiments is admissible is, under the circumstances of each case, a preliminary question for the determination of the court in the exercise of its discretion, which will not be interfered with by an appellate tribunal unless an abuse is made clearly to appear. ...” [Citations omitted.] If the *92 evidence became irrelevant upon the latter showing through the defendant that the mill was not in operation on the date of the alleged homicide, defendant’s failure to move to strike was, in effect, a waiver of the exception.
The defendant was charged with secret assault and a battery with a deadly weapon in
State v. McLamb,
Speaking to the subject, we find the following in 22 C.J., p. 765, sec. 842(1): “The conditions of a relevant occurrence may be artificially created in an experiment, and where the material facts bearing on the particular issue are precisely duplicated in the experiment, the result may be received in evidence. Such evidence is appropriate where the question to be determined relates to such matters as whether an object in a certain position can be seen from a given height above a designated spot, or from a given distance,” etc. Section 843(3) at p. 756: “Whether or not evidence of experiments is admissible is, under the circumstances of each case, a preliminary question for the determination of the court, in the exercise of its discretion, which will not be interfered with by an appellate tribunal unless an abuse is made clearly to appear.” [Citations omitted.]
In
State v. Hedgepeth,
While the similarity of the circumstances and conditions is a preliminary question for the court, we are of the opinion that its ruling here was a bit “too wide , of the mark.” The only evidence of guilt is contained in the testimony of Mrs. Bowden. Whether she could see through the window is a material factor in determining the truth of her statements. The testimony developed through the experiments tends sharply to impeach her testimony and assail her credibility. Hence, its exclusion was prejudicial to defendant....
A cursory reading of
State v. Foust,
There is no other evidence in the record as to how the safety device on this gun operates. There is no evidence in the record as to whether the safety device on the gun was on or off when it fired and killed Sylvia, or as to whether at that time it was cocked or not. There is no evidence in the record that when Millikan made his experiments the gun was in substantially the same condition as on the day Sylvia was killed. Defendant’s defense is that the shooting of the gun resulting in Sylvia’s death was by accident or misadventure. In our opinion the experimental evidence given by Millikan should have been rejected, because it does not appear from the evidence before us that his experiments were carried out under substantially similar *94 circumstances to those which surrounded the firing of the gun when Sylvia was killed. [Citation omitted.]
Foust is factually distinguishable from the case before us for decision. In Foust, the witness was not an expert in ballistics or firearm identification. Here the witness was stipulated to be an expert in firearm identification and ballstics. In Foust there was no evidence as to whether the safety device on the gun was on or off at the time of the fatal shooting. Here the expert witness testified that the safety device always required pressure on the handle of the pistol before it would fire.
The decision in Foust was based partially upon the fact that there was no evidence to show that the gun was in substantially the same condition at the time of the experiment as on the day of the shooting. Defendant also relies upon the same argument to sustain his position. The rule applied to the admission of real evidence furnishes some guidance to our decision of this question. This rule is well stated in E. Cleary (Gen. Ed.), McCormick’s Handbook of the Law of Evidence § 212 (2d Ed.), as follows:
. . . Objects offered as having played such a direct role, e.g., the alleged weapon in a murder prosecution, are commonly called “real” or “original” evidence and are to be distinguished from evidence which played no such part but is offered for illustrative or other purposes. It will be readily apparent that when real evidence is offered an adequate foundation for admission will require testimony first that the object offered is the [original emphasis] object which was involved in the incident, and further that the condition of the object is substantially unchanged. If the offered item possesses characteristics which are fairly unique and readily identifiable, and if the substance of which the item is composed is relatively impervious to change, the trial court is viewed as having broad discretion to admit merely on the basis of testimony that the item is the one in question and is in a substantially unchanged condition. On the other hand, if the offered evidence is of such a nature as not to be readily identifiable, or to be susceptible to alteration by tampering or contamination, sound exercise of the trial court’s discretion may require a substantially more elaborate foundation. A foundation of the latter sort will commonly entail testimonially tracing the “chain of custody” of the *95 item with sufficient completeness to render it improbable that the original item has either been exchanged with another or been contaminated or tampered with. [Emphasis supplied; footnotes omitted.]
The failure of the State to show lack of substantial change in the weapon does not rise to the level of prejudicial error in light of the fact that defendant offered no objection to the admission of the pistol into evidence and particularly so since there is no proof or even reasonable suggestion of tampering with or material change in the weapon. We note, however, that it would have been the better practice for the State to establish a chain of custody and offer testimony that no substantial change in the weapon had occurred.
At this point we think it helpful to review briefly a few cases from other jurisdictions which are factually quite similar to instant case.
In
Mansfield v. Commonwealth,
The defendant was charged with murder in
State v. Ernst,
In
Hodge v. State,
We find an excellent discussion concerning the similarity of conditions requisite for the admission of experimental evidence in
Love v. State,
As with other forms of circumstantial evidence, the trial judge may, in his discretion, exclude the experimental evidence after a determination that the probative value of the experimental evidence is outweighed by the possibility of prejudice, confusion of the issues or undue consumption of time. This discretion is, however, dependent upon a showing of substantial similarity of conditions by the proponent of the evidence.
*97
As the court observed in
Twite v. Union Pac. Stages, Inc.,
“The principle is that at best it is within the discretion of the court to admit any testimony whatever about experiments or similar occurrences. But in any event the conditions must appear to be substantially the same. It is not within the discretion of the court to admit evidence about experiments, unless the conditions are substantially alike.”284 P. 2d, at 345 .
Another statement of this rule is found in
Ft. Worth & Denver Ry. v. Williams,
“Before it can be said that dissimilarity of conditions merely goes to the weight and hence presents a jury question, the judge must be able to say with some degree of certainty, that confusion will not occur and such dissimilarities as are disclosed are capable of explanation so as to be readily understood.”375 S.W. 2d, at 282 .
In other words, if the differences of condition can be explained, so that the effect of those differences upon the experiment can be evaluated rationally, the judge may exercise his discretion and admit the evidence, for it can be helpful to the jury. But the judge cannot use his discretion to decide that despite a plain lack of substantial similarity in conditions he will, nevertheless, admit the evidence. In cases concerning the admissibility of experimental evidence, the foundation for admissibility should be scrutinized closely to determine whether the conditions surrounding the experiment were substantially similar to those of the alleged occurrence.
In applying the test of substantial similarity, the trial court should be guided by the following principles: Are the dissimilarities likely to distort the results of the experiment to the degree that the evidence is not relevant? Can the dissimilarities be adjusted for or explained so that their effect on the results of the experiment can be understood by the jury? In this connection the court must consider the purpose of the experiment and the degree to which the matter under experiment is a subject of precise science.
*98 Absolute certainty is not required if the experiment would be considered valid by persons skilled or knowledgeable in the field which the experiment concerns.
This determination of whether substantial differences exist may not always be capable of a mechanical solution, but the same may be said about most trial court evidentiary determinations that employ notions of relevance or materiality. Frequently common sense provides a good guide to whether a factor entering into an evidentiary determination is substantial or merely unimportant.
The rule concerning admission of experimental evidence has become somewhat confused by statements in our cases to the effect that the admission of such evidence rests in the discretion of the trial judge. In this jurisdiction a necessary corollary to such statement is that the trial judge’s ruling must stand unless the appellate court finds an abuse of discretion. However, such conclusion had been negated by statements in our cases that the trial judge’s ruling will not be disturbed unless “it is too wide of the mark,”
State v. Phillips, supra, , or
if the evidence upon which the ruling was based was “irrelevant.”
State v. Holland, supra.
In fact, this Court has reversed a trial judge’s ruling on this question without any discussion of the trial judge’s discretion.
State v. Hedgepeth, supra.
Our review of the relevant case law convinces us that the correct rule as to the admissibility of experimental evidence is as follows: Although experimental evidence should be received with great care, it is admissible when the trial judge finds it to be relevant and of probative value. Even upon such finding the admission of experimental evidence is always subject to the further restriction that the circumstances of the experiment must be
substantially
similar to those of the occurrence before the court. Whether substantial similarity does exist is a question which is reviewable by the appellate courts in the same manner as is any other question of law.
State v. Carter,
Here, the experimental evidence tended to enlighten the jurors in their search for a true verdict. There remains the question of whether the experiment was conducted under conditions substantially similar to those existing at the time of the fatal shooting. The principal dissimilarities upon which defendant relies are (1) the pistol contained only one bullet when the experiments were made as compared' with thé fact .that the *99 weapon had bullets in each chamber when the shooting occurred and (2) there was no specific showing as to the similarities or dissimilarities between the floor on which the experiments were conducted and the floor in defendant’s bathroom.
Precise reproduction of circumstances is not required, and the effect of the differences which existed was explainable by the State’s expert witness. Even though such explanation was apparently not called for upon direct examination or cross-examination, we do not perceive that the differences complained of distorted the experiments to the extent that the evidence became irrelevant. In our opinion the trial judge was not “too wide of the mark” in determining that the circumstances of the experiment were substantially similar to those surrounding the alleged homicide.
Conceding arguendo that the circumstances of the experiment did not meet the requirement of substantial similarity, defendant has failed to show prejudice because of the admission of the experiméntal evidence. Analysis of the effect of the experimental evidence reveals (1) that the fact that the gun fired at all during the experiments was favorable to defendant and supported his contention of accident or misadventure and (2) that the only possible prejudice to defendant resulting from the experimental- evidence was that the pistol would not fire unless the safety on the handle of the weapon was depressed.
■ Prior to the offering of the experimental evidence, the expert witness, Glenn Mauer, testified
without objection
that State’s Exhibit 5 (the death weapon) was an automatic loading pistol, and, in order to fire it, “one must depress the grip safety and apply pressure to the trigger. If pressure is applied to the trigger and the grip safety is not depressed then the firearm will not fire.” It is a well-recognized rule in this jurisdiction that the admission of testimony over objection is ordinarily harmless error when testimony of the same import had previously been admitted without objection or is thereafter introduced without objection.
State v. Winford,
*100 We hold that the trial judge correctly admitted the experimental evidence.
Defendant next assigns as error the failure of the trial judge to grant his motion for judgment as of nonsuit on the charge of murder in the second degree.
Murder in the second degree is the unlawful killing of a human being with malice but without premeditation and deliberation.
State v. Winford, supra; State v. Jennings,
Here, it is uncontroverted that decedent met her death from a wound proximately caused by the pistol (State’s Exhibit 5). However, the other elements of second-degree murder — malice and an unlawful killing — are not so easily met. There was no *101 evidence that the killing was unlawful and done with malice unless these elements of second-degree murder were supplied by the presumption arising from an intentional assault with a deadly weapon. Defendant’s evidence was to the effect that the firing of the pistol was accidental. The State relies upon circumstantial evidence and contends that the downward course of the bullet as it passed through the body of deceased was contrary to natural laws and scientific principles, thereby directly refuting defendant’s evidence that he accidentally dropped the pistol, which fired as it hit the floor or as he “grabbed it” just as the pistol struck the floor. The State argues that the course of the death bullet and the experimental evidence concerning the firing of the death weapon left the theory of accident or misadventure with no substantial factual basis.
In considering defendant’s motion for judgment as of non-suit, the trial judge must consider the evidence in the light most favorable to the State, take it as true, and give the State the benefit of every reasonable inference to be drawn therefrom. If there is evidence, direct, circumstantial, or a combination of both, from which the jury can find that the offense charged was committed by the defendant, the motion for judgment as of nonsuit must be overruled.
State v. Goines,
We hold that the trial judge correctly denied defendant’s motion for judgment as of nonsuit on the charge of murder in the second degree.
Finally, we agree with defendant’s contention that the evidence did not require the submission of the lesser included offense of voluntary manslaughter; however, its submission to the jury was prejudicial to the State, not to defendant.
State v. Accor
and
State v. Moore,
*102 We have carefully examined every assignment of error as well as this entire record and find no error warranting a new trial.
The decision of the Court of Appeals is
Affirmed.
