delivered the opinion of the Court.
This is a mandamus prpoceeding to compel certification of questions of venue involving Sec. 9, Art. 1995, R. C. S. Our jurisdiction is invoked upon an alleged conflict between the Court of Civil Appeals opinion in the case at bar, 240 S. W. 2d. 822, and Hurley v. Reynolds, 157 S. W. 2d. 1018.
The parties will be referred to as in the trial court.
Plaintiffs sued for damages resulting from personal injuries and death caused when their car ran into defendants’ truck parked at night beside a highway. They alleged that defendants failed to have flares the required distance from the parked truck *132as required by Sec. 9-a (1) of Art. 827a, Penal Code. They alleged another offense which we need not discuss. Defendant filed pleas of privilege which were sustained by the trial court whose action has been affirmed on appeal.
We must determine whether or not there is a conflict and, in the event of a conflict, determine the law.
We hold that the two cases are in conflict because the opinion under attack in the case at bar holds that for plaintiff to retain venue in the county of suit under Sec. 9, where the suit is based upon a crime, it is necessary for him to prove that his injuries were proximately caused by the crime. The case of Hurley v. Reynolds, supra, holds to the contrary that it is not necessary for plaintiff to prove that his injuries were proximately caused by the crime.
This problem is raised here because although plaintiffs plead that their injuries were the result of defendants’ failure to have flares out from the parked vehicle the statutory distance, the trial court found, on proof, that flares were out a distance of 80 feet (instead of 150 feet as required by Sec. 9-a, Art. 827a) and under the circumstances (straight level road and moonlight night) could be seen by a vehicle approaching from the rear in plenty of time to avoid hitting the parked truck. The trial court then made a fact finding that the injuries were not proximately caused by the alleged offenses and sustained the pleas of privilege to change the venue to defendants’ home county.
As one of the exceptions to the general statute on venue, Sec. 9, (2) provides that where a suit is “based upon a crime, *133offense or trespass” it may bé brought in the county where the crime is committed. In the case of Compton v. Elliott, 126 Texas 232, 88 S. W. 2d. 91, this Court said:
“The venus facts which a plaintiff is required to plead and prove under exception 9 are that the crime, offense, or trespass was in fact committed and that it was committed in the county where the suit is pending.”
Some of the cases discussing the word trespass in this act bring proximate cause into a venue hearing by holding proximate cause to be an element of the definition of trespass. See Heard v. Kuhnert, CCA, 155 S. W. 2d. 817. We do not here pass upon the meaning of the word trespass.
The words crime and offense as used in this section can apply only to a set of facts denominated and defined as a crime or offense for which the defendant is liable to punishment. Austin v. Cameron, 83 Texas 351, 18 S. W. 437. Therefore, the elements of a particular crime necessarily have to be determined from the definition of that crime in the Penal Code and related legislation as judicially construed. The approach to causation in civil negligence actions through the concept of proximate cause is not the same as the approach to causation in criminal cases, although both a civil and criminal action may rest upon the same facts. (3) In the case of Pope v. State, (4) 245 S. W. 2d 245, our Court of Criminal Appeals said:
*134"The trial court in his charge fully protected the rights of appellant with reference to the required causal connection between the alleged intoxication and the collision. Also, the particular facts with reference to the act of Harris in driving in front of appellant’s automobile were expressly required to be negatived as the sole causal factor in bringing about the collision.
“We are constrained to agree that the charge, as given, accorded to appellant his full defensive rights and those that were due him under what is referred to as an ‘unavoidable accident.’
“It must be remembered that the definition given to the terms, ‘proximate cause,’ ‘contributory negligence,’ and ‘unavoidable accident,’ as known to and applied to civil cases, does not apply to criminal cases.”
See Long v. State, 214 S. W. 2d. 303, on second appeal 229 S. W. 2d. 366.
Therefore it cannot be said that proximate cause is an element in the definition of a crime.
2 In determining venue under Sec. 9, supra, it is neither necessary nor desirable that plaintiff be required to prove his entire cause of action. By the use of the words based upon, Sec. 9 requires a causal connection between the injury suffered and the
*135crime committed, (5) but this is determined on a venue hearing as a matter of law from the pleadings. If it can be determined as a matter of law from the face of the pleadings that the crime was not the proximate cause of the injuries alleged it would follow that plaintiffs’ suit is not “based upon” the crime alleged. The causal connection between the crime and the injury is not a “venue fact” requiring proof. Compton v. Elliott, supra. 9 offers a defendant no protection against unfounded factual allegations that the crime was the proximate cause of the In Stockyards Nat. Bank v. Maples, 127 Texas 633, 95 S. W. 2d 1300, this Court said:
“* * * The statutory provisions as to the defendant’s privilege and the plea of privilege were not intended to protect defendants from unfounded suits.”
We have considered the well-reasoned case of Thomas v. Meyer, CCA 1943, 168 S. W. 2d. 681, but have concluded that on the point of proximate cause it is not correctly decided.. The argument that the Legislature has not changed the act since this construction was announced has no weight where the case is in conflict with a decision by another Court of Civil Appeals during the time when it might have been considered by the Legislature.
3 In deciding this case the Court of Civil Appeals expressly stated that it assumed for the purposes of its opinion that an had been alleged and proved under a valid statute. Our
*136jurisdiction in this type of proceeding is limited to answering the very question either certified or requested certified. We do not have before us either the record or the briefs filed in the Court of Civil Appeals. In any mandamus proceeding there may be questions which the Court of Civil Appeals did not reach under its view of the law, but which it will need to consider after this Court has answered the certified question. Therefore, we do not decide whether Sec. 137 of Art. 6701-d, V.A.C.S. repeals Penal Code, Art. 827a, Sec. 9, and we expressly refrain from passing upon the question of whether an offense was alleged and proved in the case at bar, and if so, whether or not the pleadings establish that plaintiffs’ suit is “based upon” this offense.
The question plaintiffs wish certified is as follows:
“When on the trial of the pleas of privilege filed by the appellees, Raymond Earl Mabra and Ben E. Keith, appellants proved commission of two crimes in Wilson County, Texas, by the appellee, Raymond Earl Mabra, while acting in the course of his employment for said appellee, Ben E. Keith, both of which crimes were negligence as a matter of law, was it necessary for appellants to prove that at least one of such crimes was the proximate cause of their injuries in order to establish venue in Wilson County, Texas, under Exception 9 of Article 1995, Vernon’s Annotated Civil Statutes of Texas?”
4 This question is answered in the negative. Plaintiffs were required to prove “that the crime was in fact committed and that it was committed in the county where the suit is pending.” Compton v. Elliott, supra. The pleadings will determine as a matter of law for purposes of venue whether or not their suit is based upon that crime.
Under Rule 475, T.R.C.P., the Honorable Court of Civil Appeals for the Fourth Supreme Judicial District of Texas is directed to conform its ruling and decision to this opinion. Costs are taxed against respondents.
Opinion delivered February 27, 1952.
Sec. 9-a. “Whenever any * * * truck, * * * shall during the period from one-half hour after sunset to one-half hour before sunrise, and at any other time when there is not sufficient light to render clearly discernible any person on the highway at a distance of two hundred (200) feet, be stopped upon the main traveled portion of any highway in this State for as long as fifteen minutes, the driver or operator thereof shall place a warning signal upon the highway on the roadway side of such vehicle, at a distance not less than one hundred and fifty (150) feet, nor more than two hundred (200) feet, from such parked vehicle near the edge of the roadway in every direction from which a vehicle may approach; * * * and said flare, electrical devise or reflector shall be placed in such a way as to be plainly observed as a signal by the driver of any approaching vehicle for a distance of five hundred (500) feet.”
Art. 1995. “No person who is an inhabitant of this state shall be sued out of the county in which he has his domicile except in the following cases:
* * * *
“9. Crime or trespass. — A suit based upon a crime, offense or trespass may *133be brought in the county where such crime, offense, or trespass was committed, whether committed by defendant or by his agent or representative, or in the county where the defendant has his domicile. As amended Acts 1947, 50th Leg., p. 739, ch. 366, Sec. 1.”
Wharton, Criminal Law, Vol. 1, Chap. VII, Clark and Marshall, Crimes, Chap. 3; Sayre, Mens Rea, 45 Harvard Law Review 974; Perkins, A Rationale of Mens Rea, 52 Harvard Law Review, 905; Greene, Proximate Cause in Texas Negligence Law, 28 Texas Law Review, 471, 621, 755; Carpenter, Proximate cause, 14 Southern California Law Review 1, 115, 416; Anderson v. State, 27 Texas App. 177, 11 S. W. 33; Blalock v. State, 40 Texas Crim. Rep. 154, 49 S.W. 100, Gorden v. State, 90 S. W. 636; Outley v. State, 99 S. W. 95; Worley v. State, 89 Texas Crim Rep. 393, 231 S. W. 391; Brown v. State, 103 Texas Crim. Rep. 35, 279 S. W. 837; Lahue v. State, 51 Texas Crim. Rep. 159, 101 S. W. 1008; Noble v. State, 54 Texas Crim. Rep. 436, 113 S. W. 281; Holland v. State, 55 Texas Crim. Rep. 27, 115 S. W. 48; Combs v. State, 52 Texas Crim. Rep. 613, 108 S. W. 649
This case arose from an automobile accident. The conviction was under the second count in the indictment which was for a killing by accident and mistake in the operation of an automobile while intoxicated. The following excerpts from several paragraphs of the court’s charge (taken from the transcript) illustrate the approach to causation:
*1347.
“Now, if you believe ** * * that the defendant * * *, while intoxicated, * * * did drive * * * an automobile, upon a public highway * * * and did * * * through mistake and accident kill Mrs. F. G. Harris, by * * * driving * * * into an automobile occupied by the said Mrs. F. G. Harris, thereby and therewith causing her death and that said automobile so driven by the said defendant, considering the manner of its use, was a deadly weapon, * * * you will find said defendant guilty of murder without malice under the second count of the indictment, * *
10.
“You are further instructed that * * * the defendant would not be guilty, if said defendant’s automobile was at said time and place operated in the manner that it should be operated by one not intoxicated or not under the influence of intoxicating liquor.”
11.
“* * * Even though you believe * * * that * * * the defendant, * * * did * * * drive * * * his * * * automobile while he * * * was * * * intoxicated * * * and * * * collide with the automobile occupied by the said Mrs. F. G. Harris, you cannot convict the defendant unless you further find from the evidence * * * that such intoxication * * * caused the collision * * * or contributed *135to same, or was a causal factor in causing the death of the said Mrs. F. G. Harris, * *
12-A.
“You are charged that if F. G. Harris drove his Model A Ford car out on the * * * highway in front of the approaching automobile of defendant in such that the intoxication, * * * did not contribute or was not a causal factor of the collision * * you will acquit * * *.”
15.
“To constitute this offense there must be an apparent danger of causing the death of the person killed or some other. The want of proper care and caution distinguishes this offense from excusable homicide. The degree of care and caution is such as a man of ordinary prudence would use under like circumstances. To bring the offense within the definition of negligent homicide of the second degree, there must be no apparent intention to kill. The homicide must be the conseqeunce of the act done or attempted to be done.”
In Sproles v. Copeland, CCA 1933, 67 S. W. 2d 1076, it was held that the fact that the entire civil cause of action included not only the crime but also a finding that the commission of the crime was negligence proximately the damages did not in itself keep the suit from being “based upon” a crime even though it was at the same time a cause of action for negligence.