¶1Opinion by
¶2Appellant is before this Court on a grant of allocatur following the Superior Court’s per curiam affirmance of the dismissal after hearing of appellant’s petition under the Post Conviction Hearing Act. There is only one issue presented for adjudication by this appeal: whether it is ever proper for the trial judge *54to participate in the plea bargaining which so often precedes the entry of a guilty plea. In this case, it is undisputed that such participation did in fact take place. The Commonwealth’s only witness at the hearing below, Mr. Hardin, appellant’s first counsel, testified that he entered into an agreement with the district attorney and the court as to the probable sentences which would be imposed on the various indictments. He stated “We had two side-bar conferences, The district .attorney, Judge Wright and myself went back in chambers. We discussed the possibility . . . that if he pleaded guilty to all five of the bills, Judge Wright . . . would sentence him on one, because it was one act.” It is the view of this Court that such a procedure is not consistent with due process and that a plea entered on the basis of a sentencing agreement in which the judge participates cannot be considered voluntary.
¶3This is not the first time that this Court has expressed such an opinion. In Commonwealth ex rel. Kerekes v. Maroney, 423 Pa. 337, 223 A. 2d 699 (1966), this Court held that plea bargaining in general was a legitimate practice, which, if properly circumscribed, offered a valuable alternative to trial for both the Commonwealth and the defense in certain cases. However our warning was quite clearly expressed at the time: “While we are not willing to completely proscribe plea bargaining, we do recognize that the awesome effect of a guilty plea and the sensitive nature of the bargaining process makes certain safeguards essential. 'Our concept of due process must draw a distinct line between, on the one hand, advice from and “bargaining” between defense and prosecuting attorneys and, on the other hand, discussions by judges who are ultimately to determine the length of sentence to be imposed.’ . . . .”
¶4This position is in conformity with that of the most respected commentary in the area. For example, In*55formal Opinion No. 779, ABA Professional Ethics Committee announces that “A judge should not he a party to advance arrangements for the determination of sentence, whether as a result of a guilty plea or a finding of guilty based on proof.” 51 A.B.A.J. 444 (1965). Furthermore, the American Bar Association Project on Minimum Standards for Criminal Justice sets out the explicit provision under “Responsibilities of the trial judge” that “The trial judge should not participate in plea discussions.” ABA Minimum Standards, Pleas of Guilty, §3.3 (Tent. Draft, February, 1967). First, the defendant can receive the impression from the trial judge’s participation in the plea discussions that he would not receive a fair trial if he went to trial before the same judge. Second, if the judge takes part in the preplea discussions, he may not be able to judge objectively the voluntariness of the plea when it is entered. Finally, the defendant may feel that the risk of not going along with the disposition which is apparently desired by the judge is so great that he ought to plead guilty despite an alternative desire. What was pointed out in a recent case bears repeating here: “The unequal positions of the judge and the accused, one with the power to commit to prison and the other deeply concerned to avoid prison, at once raise a question of fundamental fairness. When a judge becomes a participant in plea bargaining he brings to bear the full force and majesty of his office. His awesome power to impose a substantially longer or even maximum sentence in excess of that proposed is present whether referred to or not. A defendant needs no reminder that if he rejects the proposal, stands upon his right to trial and is convicted, he faces a significantly longer sentence.” United States ex rel. Elksnis v. Gilligan, 256 F. Supp. 244, 254 (S.D.N.Y. 1966). For these reasons, we feel compelled to forbid any partici*56pation by tlxe trial judge in the plea bargaining prior to the offering of a guilty plea.
¶5Accordingly, the order of the Superior Court is reversed, the order and judgment of the Court of Common Pleas of Philadelphia County are vacated and the case is remanded for a new trial.
¶6 Our holding here, as well as in Kerelees, supra (decided before the adoption of the ABA standards) is fully in accord with the ABA Minimum Standards which preclude the judge’s participation in the plea bargaining process before a plea bargain or agreement has been reached between the prosecution and the defense. These Standards clearly indicate that the judge may be informed of the final bargain once it has been reached and before the guilty plea is formally offered. “If a tentative plea agreement has been reached which contemplates the entrance of a plea of guilty or nolo contendere in the expectation that other charges before the court will be dismissed or that sentence concessions will be granted, upon request of the parties the trial judge may permit the disclosure to him of the tentative agreement and the reasons therefor in advance of the time for tender of the plea. He may then indicate to the prosecuting attorney and defense counsel whether he will concur in the proposed disposition . . . .” ABA Minimum Standards, Pleas of Guilty, §3.3(b).
¶7This limited action by the trial judge is allowed on the theory that a greater degree of certainty that the bargain will be accepted is necessary for the operation of the system. However, it must be emphasized, as the ABA commentary indicates, “This procedure . . . does not contemplate participation by the judge in the plea discussions. The judge only becomes involved after the parties have reached agreement, and thus there would appear to be little basis upon which the defendant or counsel could conclude that the judge is attempting to force a certain result upon the parties.” ABA Standards, supra, at 75 (Emphasis added)
¶8The ABA Standards also permit a withdrawal of the plea if the trial judge decides his original agreement was inappropriate. “If the trial judge concurs [in the plea bargain], but later decides that the final disposition should not include the charge or sentence concessions contemplated by the plea agreement, he shall so advise the defendant and then call upon the defendant to either affirm or withdraw his plea of guilty or nolo contendere.” ABA ivriuimnm Standards, Pleas of Guilty, §3.3(b) (Approved Draft 1968) Implicit in our holding today is an acceptance of this provision as well. Moreover, if a judge refuses to accept a plea bargain agreed to by the defense and the Commonwealth, or if a plea of guilty or nolo contendere is withdrawn because the trial judge decides that his original agreement was inappropriate, then *57the trial should be held where practical before another judge who has no knowledge of the prior plea bargaining. This is in accord with our statement in Kerehes that judges who participate in bargaining shall not “ultimately determine the length of sentence to be imposed.” (at 349)