Dissenting Opinion by
Ross, J.:I am unable to agree with the majority that the grant of a new trial in this case should be reversed and, therefore, I dissent.
This is an appeal from an order granting a new trial in a criminal case after a jury conviction of the defendant-appellee. The appeal raises two questions: (1) Did the trial court abuse its discretion in granting a new trial — the question that is always involved when there is appellate review of such action by the court below, whether in a civil or criminal action, and (2) Does the Commonwealth have the right to appeal from the order granting a new trial in this case? Clearly if either of these questions should be answered in the negative, the order must be affirmed. In my opinion, both should be so answered.
I do not agree with the majority or with the learned court below that the result of an intoximeter test is admissible as proof that the testee was under the influence of liquor.- In my opinion, before results of such tests are admissible, the legislature — and not the courts — should say so. However, that is beside the point and not involvéd in this appeal. The trial court held that such tests are admissible under proper circumstances but that they were improperly admitted in evidence under the circumstances in this case and, for that reason, granted a new trial. - -
*141I agree with the learned court below that the results of the test should not have been received in evidence in the instant case because of the time lapse between the accident and administering of the tests. Admittedly it was incumbent upon the Commonwealth to show that the defendant was under the influence of liquor at the time he was operating the motor vehicle, which in this case was no later than the time of the accident, 3:50 p.m. The test was given 55 minutes later, at 4:45 p.m. The majority opinion recognizes that the results of the test indicate only that at 4:45 p.m., when the test was administered, the defendant had an alcoholic content in his blood of .20 per cent. Admittedly .15 per cent, or more would indicate that the person was under the influence of intoxicating liquor.
The Commonwealth’s expert witness testified that a person was unaffected by alcohol until it was absorbed into the blood stream and that it takes from 30 minutes to 1% hours for the alcohol to pass through the digestive processes into the blood stream, measured from the time the alcohol is first consumed. In addition, the expert testified that the rate of absorption is dependent upon many other factors, such as the amount of food in the stomach, the particular tolerance of the individual drinker, etc. When he was asked “Q. At what rate does the blood absorb the alcohol? Is there any particular rate?” he answered, “No, it is over a length .of time. ■ If you give a person who has had no liquor a considerable sizé drink; in just, a few minutes, you can . detect alcohol in Ais blood, within the first couple'minutes.” Further: “Q: But you can’t fix the .specific rate of. absorption? A. No, it varies indifferent people. .Some people are slow and some are fast.” . ■ . ..
This would indicate, that even the expert witness could not. say. that, because the. content .was ;2Q percent. *142at 4:45 p.m. that at 3:50 p.m. the content was at least .15 per cent. If the rate of absorption cannot be established, how can anyone say that at a certain prior time as remote as 55 minutes, the alcohol content was a certain percentage? Especially is this true where the absorption is dependent on so many factors which were not established upon the record here. That the fact that at 4:45 there was a .20 per cent, alcohol content would indicate that at 3:50 p.m. there was at least .15 per cent, alcohol content is pure conjecture and is not supported by any evidence which the jury could weigh in determining the effect of this evidence. Until some connecting rate or some other circumstantial evidence was introduced to show that the .20 per cent, figure at a certain time would indicate a .15 per cent, figure at the time of the accident, it would seem that the .20 figure stands alone as an isolated indication only of the alcohol content at the time the test was given. It is, therefore, my opinion that the lower court did not abuse its discretion in granting a new trial on the ground that this evidence should have been excluded.
As I view it, the really important question in this case is whether the Commonwealth has the right of appeal. “Under the common law the commonwealth had no right to appeal in a criminal case unless the appeal was from an order . . . sustaining a demurrer, or in arrest of judgment. Our statute of May 19, 1874, P. L. 219, §1, 19 PS §1188, as amended by the Act of May 19, 1897, P. L. 67, §22, 12 PS §1161, provides for the taking of appeals by the commonwealth in criminal eases charging ‘nuisance or forcible entry and detainer, or forcible detainer’. It was said in Commonwealth v. Wallace, 114 Pa. 405, 411, 6 A. 685: ‘But for error in quashing an indictment, arresting judgment after verdict of guilty, and the like, the Commonwealth may *143remove the record for review without special allowance of the proper writ.’ ... In other words, if the ruling is against the commonwealth on a pure question of law it may appeal: Commonwealth v. Simpson, 310 Pa. 380, 383, 165 A. 498.” Com. v. Dellcese, 155 Pa. Superior Ct. 120, 122, 38 A. 2d 494.
The majority opinion concludes that the order granting a new trial raised “a question wholly of law” and consequently the order was appealable by the Commonwealth, citing Com. v. Bradley, 109 Pa. Superior Ct. 294, 167 A. 471. In that case, this Court on appeal by the Commonwealth reversed the granting of a new trial. The sole question before the Court there was whether or not a confession of the defendant in a perjury charge was sufficient corroboration of another witness to the falsity of the matter which was perjured. It was not a question of what the confession contained as a matter of fact, but solely whether as a matter of law a confession was sufficient to corroborate the other witness to the perjury. In the instant case, the lower court granted a new trial because as a matter of fact there was nothing to connect the results of the test with the condition of the defendant at the time of the accident. The court below did not determine that as a matter of law the test was inadmissible, but rather while recognizing the reliability and authenticity of the test, concluded that there was no factual relation of it to the issue of intoxication at the time of the accident. In my opinion, the cases are clearly distinguishable.
The difficulty in determining what is a matter of fact and what is a matter of law is, of course, obvious and in many cases the decision rests on both the determination of fact and of law. The rule is clear, however, that the Commonwealth may appeal from an adverse ruling only where it is a “pure” question of law. *144In the Dellcese case, supra, 155 Pa. Superior Ct. 120, 38 A. 2d 494, the lower court granted a new trial because the charge of the court was inadequate on the question of the degree of negligence on a manslaughter charge. This Court concluded that the granting of a new trial on that basis was not. appealable by the Commonwealth as a “pure” ■ question of law but rather a matter of discretion as .to whether the new trial should be granted. The rule which requires that the matter involve a “pure” question of law was not meant to extend the right of the Commonwealth to appeal where the question involved some issue Of law. For example, in Com. v. Cohen, 142 Pa. Superior Ct. 199, 15 A. 2d 730, an appeal from the sustaining of a demurrer to the indictment was allowed; in Com. v. Reitz, 156 Pa. Superior Ct. 122, 39 A. 2d 522, an appeal was allowed where the question involved the constitutionality of the act-underlying the indictment; and Com. v. Kolsky, 100 Pa. Superior Ct. 596, where an appeal was allowed from the sustaining of a demurrer raising the “pure” legal question of the sufficiency of the evidence to support the crime charged. But in Com. v. Supansic, 93 Pa. Superior Ct. 111, an appeal was refused the Commonwealth where the new trial was granted because certain occurrences at another • similar trial at about the same time might have had a prejudicial influence upon the jury. '
The Commonwealth states that the issue is whether it was error for the lower court to determine that the results of the intoximeter test were improperly admitted as corroborative of the other evidence — in other words, an issue on the admissibility of the evidence. That issue, decided adversely to the Commonwealth, furnishes no basis for an appeal by it. In Com. v. Wallace, supra, 114 Pa. 405, 411, 6 A. 685, it is said: “To erroneous decisions made in the trial which may *145cause the acquittal of the accused, except in the three misdemeanors already mentioned [nuisance, forcible entry and detainer and forcible detainer], the Commonwealth cannot except, and such decisions cannot be reviewed.” In Com. v. Frank, 159 Pa. Superior Ct. 271, 48 A. 2d 10, this Court held that although the Commonwealth may appeal from the sustaining of a demurrer to the indictment or to the evidence if the sole issue is the sufficiency of the evidence to support the charge, the Commonwealth cannot appeal from the sustaining of a demurrer to the evidence when the issue was really the error, if any, in the trial court’s exclusion of much of the Commonwealth’s evidence tending to prove the crime, the reasoning being that the admissibility or exclusion of the evidence is not a proper issue upon which the Commonwealth can base an appeal. If the Commonwealth cannot appeal from the exclusion of evidence at the trial, nor from the sustaining of a demurrer where evidence was excluded, it follows that it cannot here appeal from the granting of a new trial on the basis that evidence should have been excluded.
I would, therefore, quash the appeal and affirm the order granting a new trial.