Opinion by
Appellant, John J. Conti, Jr., was tried before a judge sitting without a jury on November 23, 1971, and was found guilty of issuing a worthless check. Post-trial motions in arrest of judgment and for a new trial were denied on November 30, 1973, and sentence was imposed. On this appeal two issues are presented: whether the evidence was sufficient to support appellant’s conviction, and if it was, whether the lower court erred in denying appellant’s motion for mistrial when a witness for the Commonwealth stated that appellant had pleaded guilty at a preliminary hearing, and his later motion, when that same witness stated that appellant had made an offer to settle the case.
I
Two employees of a lumber supply company, Jean Moyer and Wendel Lehman, testified for the Commonwealth. Lehman’s testimony was that in February, 1970, appellant met with him to discuss the purchase of a supply of lumber, and that he told appellant he would sell him no lumber until he had received payment for past purchases and until he had a check to cover the price of any new order. Apparently appellant agreed to this arrangement because Lehman went on to testify that when he questioned appellant about the check for the new order, appellant responded, “If this check isn’t any good, you can hang me.” Moyer’s testimony was. as follows: On February 19 or 20, 1970, appellant called the lumber yard and asked the price of his new order. She said it was $1,934.49. On February 20 appellant came *491 to the lumber yard, gave her a check for that amount, and then gave her directions for delivering the lumber. At that time, she noted that the date on the check was February 20, 1970. She did not remember the exact day the lumber was delivered, but she felt certain it was after February 20 since she had had orders not to deliver any lumber to appellant until she received a check. On March 5, 1970, she deposited the check, but the bank rejected it because there were insufficient funds. She re-deposited the check, but it was again returned. Both Lehman and Moyer repeatedly denied that appellant had ever told them to hold the check.
Appellant testified on his own behalf, to the following effect. He explained that prior to February 4, 1970, he met with Lehman and an associate of Lehman’s to discuss the purchase of enough lumber to build a house. Appellant agreed he was told he could not buy any more lumber unless he satisfied his debt for past purchases and unless he issued a check for the price of the new order. According to appellant, however, it was agreed that the lumber company would deliver the lumber and hold the check until the house reached a certain stage of completion, when funds due appellant would be released ; if this arrangement proved satisfactory, it was to be repeated for the next house. On February 4, 1970, appellant went to the lumber yard and delivered a $200 check for past purchases and one for $1,934.49 for the new order. A few days later the lumber was delivered. On February 20, 1970, he called the lumber company and said to cash the first check, but in regard to the second, he said, “Hold the second check, because if you deposit it now, there’s not sufficient money, and that you could hang me with it.” The spokesman for the lumber yard said he would hold the check. Appellant explained that he never authorized the company to cash the check because there were never sufficient funds in the bank to cover it.
*492
In determining the sufficiency of this evidence, we must regard it in the light most favorable to the Commonwealth, giving the Commonwealth the benefit of all reasonable inferences arising from it.
Commonwealth v. Herman,
Section 854 of the Act of June 24, 1939, P.L. 872, 18 P.S. §4854, provides in pertinent part: “Whoever, with intent to defraud, makes, draws, utters or delivers any check . . . upon any bank, . . . knowing, at [that] time . . . that the maker or drawer has not sufficient funds in, or credit with, such bank, . . . for the payment of such check, although no express representation is made in reference thereto, ... is guilty of a misdemeanor,. . . Accordingly, in order to convict an individual of issuing a worthless check, the Commonwealth must prove that he (1), made, drew, uttered, or delivered a check, (2) With knowledge that there were insufficient funds, and (3) with intent to defraud.
Commonwealth v. Ali,
It is appellant’s contention that since he post-dated the check and told the lumber yard to hold the check because of insufficient funds, he lacked the requisite intent to defraud. In
Commonwealth v. Massaro,
“The Commonwealth has failed to establish by the evidence as a matter of law, the offenses for which this defendant stands convicted . . .”
Id.
at 143,
According to Moyer, appellant made a check and delivered it to the lumber yard on February 20, 1970, the day it was dated, in order to obtain some lumber; and according to Lehman, when questioned about the check,
*494
appellant said, “If this check isn’t any good, you can hang me.” By his own testimony, appellant knew there were insufficient funds in the bank on February 20. Thus, it is clear that by selectively accepting testimony, the trial judge could find that appellant made and delivered a check, knowing there were insufficient funds, with intent to defraud the lumber yard by obtaining lumber without giving the required consideration. Further, when appellant delivered the check he received a promise that the lumber would be delivered to him. He therefore received something of value.
See In re Ratony’s
Estate,
II
On direct examination, the prosecutor directed Lehman’s attention to the time of appellant’s preliminary hearing. Defense counsel objected immediately. After argument, however, the trial judge allowed the prosecutor to continue his questioning, and he proceeded as follows:
“District Attorney: I think you testified that you had a conversation with Mr. Conti [appellant] on the day that a hearing was held in Justice of the Peace Snyder’s office, is that correct?
Lehman: Yes. Due to the fact ....
District Attorney: Now wait a minute. Excuse me a minute. Now, when was that conversation with Mr. Conti, before, during or after the hearing?
Lehman: It was during the hearing and I’ll tell you afterwards. During the hearing he pleaded guilty. Defense Counsel: Your Honor, I object. I ask for a mistrial.
*495 The Court: Sustained.
Defense Counsel: I ask for a mistrial, and I ask that the case .be assigned to another judge.
The Court: The motion is refused.
Defense Counsel: The testimony, though, is stricken from the record do I understand.
The Court: It may be.
Defense Counsel: And my other requests are denied ?
The Court: Yes.”
In
White v. Maryland,
The decision whether to declare a mistrial is within the sound discretion of the trial judge and will not be reversed absent a flagrant abuse of discretion.
See Commonwealth v. Fennell,
The most notable illustration of this principle is the decision in
Bruton v. United States,
This case is different from Bruton in that here there was no jury. The issue that arises, therefore, is whether, *497 when appraising the impact of incompetent, highly prejudicial evidence, the same degree of caution is necessary when the case is tried without a jury as when it is tried with one.
In approaching this issue, the traditional starting point has been the general rule that the same rules of evidence should be used in jury and non-jury trials.
See Commonwealth v. Henderson,
*498
Commonwealth v. Berkery, supra,
illustrates this reasoning. There the defendant was tried by a judge without a jury and found guilty of an attempt to commit burglary, possession of burglary tools, and conspiracy. The evidence of guilt was overwhelming. The defendant sought a new trial on the ground, among others, that “the trial judge sitting without a jury may well have been influenced by the fact that during the course of the trial, he became aware of the identity of the Defendant who had become the subject of great notoriety and publicity close to the time of the trial.”
Id.
at 628,
Statements such as these must, however, be read with care, lest we overlook the fact that judges are subject to the same emotions and human frailties as affect all persons, lay jurors or not. Recognizing this, other judges have on occasion questioned any presumption of special judicial detachment. For example, in
Kovacs v. Szentes,
In addition, it must be noted that this court has questioned and rejected the notion that a trial judge, due to his legal training and experience, is uniquely able to disassociate the incompetent evidence from the competent. In
Commonwealth v. Rivers,
It is plain from the cases cited that in some instances due process requires that we not simply rely on the fiction of a judicial blindside. It is also plain, when cases like Berkery and Mangan are compared with cases like Rivers, that at least in Pennsylvania no fixed rule has been announced for determining when a trial judge will be regarded as having been able to maintain his impartiality after hearing incompetent evidence. We do not undertake to announce such a rule now. Instead, we shall continue to decide each case according to its particular facts. In so doing, however, we do explicitly recognize that two factors will be considered of critical import. One factor will be the inherently prejudicial quality of the specific evidence involved. This, as indicated, was determinative in Rivers. There the evidence was “so prejudicial” that the risk of improper adjudication could not be ignored. In contrast, when the risk is not of emotional impact but rather of intellectual error in tracing a chain of inferences or in recognizing the pitfalls of double hearsay, greater weight will be given to judicial expertise. See Levin and Cohen, supra; Davis, supra. The other factor will be the importance of the evidence to the particular case. Suffice it to say that when, as in Berkery, the other evidence is overwhelming, we shall be less sensitive to the risk of harmful prejudice below.
*502
When these two factors are considered in the present case, it becomes clear that a new trial is required. First, the evidence was not overwhelming, the determination of guilt or innocence turning entirely on which witnesses the trial judge believed. As has been noted, if he believed the Commonwealth’s witnesses, he had to find appellant guilty, but if he believed appellant, he had to find appellant not guilty. None of the testimony was incredible. The intrusion into the decision-making process of inadmissible evidence that might predispose the trial judge to believe one side or the other was therefore of vital importance. Second, the inadmissible evidence — Lehman’s statement that appellant had pleaded guilty at the preliminary hearing — was inherently highly prejudicial for it indicated that appellant was lying either at the preliminary hearing or at trial. Thus, no matter which way the evidence was taken, it cast a shadow on appellant’s testimony and therefore the whole case. In
Commonwealth v. Horner,
The judgment of sentence is reversed and the case is remanded for a new trial.
Jacobs and Price, JJ., dissent.
Notes
. “It is not unreasonable to conclude that in many such cases the jury can and will follow the trial judge's instructions to disregard such information. Nevertheless, as was recognized in
Jackson v. Denno
[
“We, of course, acknowledge the impossibility of determining whether in fact the jury did or did not ignore Evans’ [the joint-defendant’s] statement inculpating petitioner in determining petitioner’s guilt. But that was also true in the analogous situation in Jackson v. Denno, and was not regarded as militating against striking down the New York procedure there involved. It was enough that that procedure posed 'substantial threats to a defendant’s constitutional rights. . . . These hazards we cannot ignore.’ . . . The effect is the same as if there had been no instruction at all.” Bruton v. United States, supra at 135, 136-37.
. Spaulding and Hoffman, JJ., dissented.
. Wright, P.J., and Watkins, J., would have affirmed on the opinion of the lower court.
. This conclusion makes it unnecessary to consider appellant’s contention that the trial judge also committed reversible error when he refused to declare a mistrial after Lehman testified that appellant had offered to settle the case.
