The defendant, James Leroy, was convicted after a jury trial of assault in the second degree with a motor vehicle while intoxicated in violation of General Statutes (Rev. to 1985) § 53a-60d (a).
The pertinent facts as set forth in the opinion of the Appellate Court are as follows. “On September 29, 1984, at approximately 3 a.m., the defendant, James Leroy, was involved in a two vehicle collision with Leslie Daniel in Enfield. The defendant’s car was traveling east and Daniel’s car was heading west on Shaker Road when the two cars collided. The area where the impact occurred was rural, dark and badly lit, with curves and hills. Ralph Adamczyk was the only eyewitness to the accident. He was traveling behind Daniel’s car and observed both headlights of the defendant’s oncoming car as it came around a corner. As the defendant’s car approached, the driver’s side headlight disappeared twice from Adamczyk’s view. Both cars swerved to avoid a collision. Adamczyk spoke with and observed the defendant after the collision and did not consider him to be intoxicated. At the accident scene, police officers noted the smell of alcohol on the defendant, and the defendant had difficulty maintaining his balance and exhibited slurred speech. The defendant was unable to perform two field sobriety tests satisfactorily. The defendant’s breath test yielded a blood alcohol reading of 0.215 of 1 percent, revealing that he had consumed between ten to thirteen beers.
“As a result of the accident, Daniel suffered serious injuries. She was unconscious from the time of the accident until October 19,1984, and remained hospitalized until late November, 1984. Upon release from the hospital, Daniel’s speech and memory were impaired, she could not walk or use her left arm, and her vision was limited. She received more than seven months of physical, occupational and educational rehabilitation therapy. Daniel’s speech is no longer impaired and she has
The defendant subsequently was charged with assault in the second degree with a motor vehicle while intoxicated. At trial, the defendant offered evidence to prove that the accident had occurred on his side of the highway, and thus that it was Daniel, not he, who had crossed the center line and had caused the collision. At the conclusion of the evidence, the court instructed the jury, without objection from the defendant,
The defendant appealed from the judgment of conviction to the Appellate Court.
In Spates, we said that proximate cause “in the criminal law does not necessarily mean the last act of cause, or the act in point of time nearest to death. The concept of proximate cause incorporates the notion that an accused may be charged with a criminal offense even though his acts were not the immediate cause of death. An act or omission to act is the proximate cause of death when it substantially and materially contributes, in a natural and continuous sequence, unbroken by an efficient, intervening cause, to the resulting death. It is the cause without which the death would not have occurred and the predominating cause, the substantial factor, from which death follows as a natural, direct and immediate consequence.” (Emphasis added.) State v. Spates, supra,
I
The state claims that the Appellate Court misapplied Spates and improperly determined that the trial court’s jury instruction on proximate cause violated the defendant’s constitutional rights. The state also argues that even if the trial court’s instruction was incorrect, its error was harmless under the facts of this case. We agree that the Appellate Court misapplied Spates, and reverse the judgment without engaging in a harmless error analysis.
We begin by noting that an improper jury instruction as to an essential element of the crime charged may result in the violation of the defendant’s due process right to a fair trial, and thus require the reversal of a conviction based upon that instruction. State v. Allen,
In order to determine whether the trial court’s jury instruction was incorrect, it is useful to analyze our cases that have discussed proximate causation in criminal prosecutions. In State v. Spates, supra,
First, we note that in Spates, the defendant’s challenge to the jury instruction had nothing to do with whether “the substantial factor” or “a substantial fac
Second, the actual jury instruction that we approved in Spates not only lacked the words “the substantial factor” or “the predominating cause,” but also expressly permitted a guilty verdict even if the defendant’s conduct was not the only cause of the victim’s death.
Third, it is significant that the Spates decision cited State v. Tomassi,
On January 16, 1979, more than two months after our decision in Spates, we decided State v. Wilkinson,
Moreover, in the years after Spates, this court repeatedly has affirmed the law as to proximate cause as stated in Tomassi and Alterio. In State v. Jacobs,
In view of the fact that Spates cited Tomassi as controlling authority for its definition of proximate cause,
II
The defendant argues, however, that the Appellate Court correctly determined that the trial court’s jury instruction was erroneous because the legislature, in 1985, in the process of amending § 53a-60d by No. 85-147 of the 1985 Public Acts, specifically deleted the language “a substantial factor” from a draft amendment. We disagree.
The defendant points out that in the process of amending § 53a-60d, a draft amendment initially contained the phrase “a substantial factor.” The defendant also points out that the phrase was later specifically excised by a House Amendment.
In view of the conflicting legislative history, we decline to adopt the import ascribed by the defendant to the removal of “a substantial factor” from the draft bill. Our decisions permit a jury to find that a defendant’s conduct was the proximate cause of a victim’s injuries if the conduct was a direct and substantial factor in bringing about the victim’s injuries, and if there was no superseding intervening and efficient cause. We are unpersuaded that anything said in the proceedings in the General Assembly concerning No. 85-147 of the 1985 Public Acts, which was proposed to remedy an unrelated aspect of § 53a-60d, changed that rule of law.
The judgment of the Appellate Court is reversed, and the case is remanded to that court for consideration of the defendant’s remaining claims.
In this opinion the other justices concurred.
Notes
The Appellate Court incorrectly stated that the defendant was charged with violating General Statutes (Rev. to 1985) § 53a-60d, as amended by Public Acts 1985, No. 85-147, § 2, as the statute provides today. State v. Leroy,
We granted the state’s petition for certification limited to the following issues: (1) “Did the Appellate Court properly conclude that the trial court’s instruction on proximate cause constituted a violation of the defendant’s constitutional rights?” and (2) “If the answer to question (1) is yes, has the state established harmlessness beyond a reasonable doubt?” State v. Leroy,
Although the defendant conceded that his claim that the trial court improperly instructed the jury as to proximate cause was unpreserved, the Appellate Court held the issue to be reviewable under the test set forth in State v. Golding,
The trial court’s entire jury instruction on proximate cause was as follows: “Now, as I previously instructed, the state must establish beyond a reasonable doubt that the alleged intoxication of the defendant caused the serious injury of another person. Therefore, if you find intoxication but also find that it was not a substantial factor in causing the alleged injuries of the victim, then the intoxication was a condition surrounding the injury, not a cause of it, and you must return a finding of not guilty.
“For the defendant to be found guilty, the state must establish beyond a reasonable doubt a cause or a relation between the accident caused by the defendant being intoxicated, and the injury it claims resulted from it. This causal connection must rest upon more than surmise, speculation or conjecture. You, as triers of the facts, are not to be concerned with possibilities but only with reasonable probabilities.
“In consideration of the causes of this accident and the result, you should keep in mind that all collisions that occur on the highways are not necessarily caused by the fault of some person. Accidents may happen when neither party is at fault.
“An accident which could not be prevented by the exercise of reasonable care and prudence is called an unavoidable accident, and if you believe from the evidence that this occurrence was of such a character, the defendant is entitled to a verdict of not guilty.
“As I have said, the state must prove that the defendant’s intoxication proximately caused serious physical injury to Leslie Daniel. Proximately
“Whether the sequence of events is unbroken by any intervening cause, an act or a failure to act is a proximate cause of the result. Proximate cause, thus, is an act or a failure to act which is a substantial factor in producing the result.
“Now, the intoxication of the defendant need not be the sole proximate cause of the injuries. All that is required is that the intoxication of the defendant, if you find that he was intoxicated, be a substantial factor in bringing about the injuries to Leslie Daniel.
“Now, if you find that the defendant’s intoxication—if you find intoxication, but if you find that such intoxication . . . was a substantial factor, then the state has met its burden in this element.” (Emphasis added.)
On appeal to the Appellate Court, the defendant claimed that the trial court improperly: (1) instructed the jury as to proximate cause; (2) denied a motion to strike expert testimony on the ground of lack of an evidentiary foundation; and (3) instructed the jury as to reasonable doubt thereby diluting the state’s burden of proof. The Appellate Court considered only the first of these claims. State v. Leroy, supra,
Causation is an essential element of the crime of assault in the second degree with a motor vehicle while intoxicated. See General Statutes § 53a-60d. In order for legal causation to exist in a criminal prosecution, the state must prove beyond a reasonable doubt that the defendant was both the cause in fact, or actual cause, as well as the proximate cause of the victim’s injuries. See W. LaFave & A. Scott, Criminal Law (1972) § 35, pp. 246-51. “In order that conduct be the actual cause of a particular result it is almost always sufficient that the result would not have happened in the absence of the conduct; or, putting it another way, that ‘but for’ the antecedent conduct the result would not have occurred.” Id., p. 249. On the other hand, proximate cause requires that “the forbidden result which actually occurs must be enough similar to, and occur in a manner enough similar to, the result or manner which the defendant intended (in the case
The jury instruction stated, in part, that “[i]f the defendant’s conduct, in his relations with [the victim], inflicted upon the latter physical or emotional injury or stress or trauma which was in this sense the proximate cause of his death, then the defendant’s conduct, under the circumstances, caused his death and satisfied this element of the law or charge upon this offense, even though such physical or emotional stress or trauma were not the only cause of [the victim’s] death, and although [the victim] had already been enfeebled by poor physical condition of severe heart disease, and even though it is probable that a person in sound physical condition would not have sue
The statute’s language was changed, in part, from “in consequence of his intoxication” to “as a consequence of the effect of such liquor or drug.”
The legislative commissioner had inserted the language “a substantial factor” into the proposed House Bill. House Amendment “A” changed the “a substantial factor” language in the proposed bill back to the original “consequence of.” Representative William A. Wollenberg proposed the amendment to this bill, and spoke on its behalf as follows: “Mr. Speaker, in the file copy, the language of in consequence of was changed to substantial cause. Now, substantial cause is a lesser, there is a lesser burden to prove the fact that the individual was under the influence under substantial cause, in consequence of, rather than substantial cause.
“It’s been brought to our attention that perhaps it should be a more difficult burden to prove, and we have asked that the language be changed from ‘substantial’ to ‘in consequence of.’ It does require that the entire language of this statute be moved around a little because the ‘substantial’ and ‘in consequence of’ are different terms entirely.
“Basically it makes it more difficult under in consequence of.
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“Through you, Mr. Speaker. We had substituted language. We had substituted the word, ‘substantial’ rather than words, ‘as a consequence of.’
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“Through you, Mr. Speaker. I can’t give you exact percentages because I don’t know what the percentage of substantial is, but if we are looking from 50 to 100%, substantial might be 70%. In consequence of might be 80 or 90%.
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“Mr. Speaker. If I may, just to clarify and I understand the problem here. The causation of the damage, the death or damage in the case of assault, the causation may have been in part because of the intoxication or being under the influence, and in part for some other reason.
“Under the in consequence of rises above the proof of substantial.” 28 H.R. Proc., Pt. 9, 1985 Sess., pp. 3124-28.
On the other hand, Representative Robert M. Frankel understood the reason for the removal of the word “substantial” as follows: “Yes, Mr. Speaker, I’d like to attempt to try to assist the chamber in understanding the reason for the amendment. The file copy was designed to correct a problem that arose from a court decision. It was an attempt to use the right definition for under the influence, because in that court case, someone escaped from being found guilty because the statute that is on the books today, talks about intoxication, instead of about the words, ‘under the influence,’ and that is what the file copy tried to do, to put the words, ‘under the influence’ in, and take the word ‘intoxication’ out, because the courts interpreted them differently, and the file copy would indeed make the law more tough on drivers, but I believe inadvertently [the legislative commissioner’s office] threw in some new language that the committee didn’t consider, and they threw in the words, ‘substantial,’ and we have no definition for substantial.
“Is it 20%, is it 50%, is it 60%? It’s something more than a little, but is it 70 or 80. We don’t know, and I don’t think it was appropriate to put it there. The existing law says, ‘in consequence of,’ and that is what Rep. Wollenberg’s amendment would do, would use that same language. But it would still leave the file copy intact to toughen up our drunk driving laws to do what was intended by the committee, and to correct the problem that that court decision brought about.
“And so I would urge the membership to support the amendment, which I think will make the file copy to do what the committee intended, toughen
Representatives Wollenberg and Frankel were the only two legislators who spoke to the substance of the amendment.
House Amendment “A” was adopted and ruled technical. Id., p. 3132.
Notably, Representative Wollenberg’s criticism was directed at the word “substantial,” not at the phrase “a substantial.” See footnote 9. Thus, Representative Wollenberg’s statements, even if taken as definitive regarding the omission of “a substantial,” do not support the defendant’s argument.
