Defendant was charged with and pled guilty to possessing a controlled substance, marijuana, with intent to deliver; MCLA 335.341(l)(c); MSA 18.1070(41)(l)(c). He was sentenced to a prison term of 18 months to 4 years and appeals.

At the outset it is well to mention that defendant Farris pleaded guilty on February 1, 1974, at which time MCLA 335.341(2); MSA 18.1070(41X2), had not as yet been challenged as far as constitutionality of the act was concerned. After this guilty plea People v Serra, 55 Mich App 514; 223 NW2d 28 (1974), was decided and found the act unconstitutional. This statement is made in fairness to the trial judge who did not have the benefit of Serra at the time the plea was taken.

The issue squarely before us entails deciding the applicability of People v Serra, supra, to a guilty plea proceeding. Serra held, and we agree, that the two-ounce presumption1 embodied in MCLA 335.341(2); MSA 18.1070(41)(2) is unconstitutional. It impermissibly compromises the privilege against self-incrimination.2

"MCLA 335.341(2); MSA 18.1070(41X2) is infirm in that there is no rational connection between the proven fact (possession of two ounces of marijuana) and the presumed fact (intent to deliver) in light of today’s 'common experience’ ” People v Serra, 55 Mich App 514, 528; 223 NW2d 28, 35-36 (1974).

Proof of the crime of "possession with intent to deliver” does not require the crutch of a presumption.

*420"Statutory presumptions are merely aids to expedite prosecution. Possession of large amounts of a controlled substance will give rise, without the artificial boost of a presumption, to an inference that the person possessing it intended to deliver it.” People v Serra, supra, 55 Mich App 514, 520.

We are unable to say, from this record, that the trial judge inferred the intent to deliver from the large quantity ("it was pounds”) possessed. We believe that, instead, the statutory presumption was on the trial judge’s mind at the plea taking and at sentencing.

The following dialogue occurred while the plea was taken:

"MR. FARRIS [defendant]: I believe October 5th or 6th, yes, October 6th, I was arrested for possession with intent to deliver marihuana.

"THE COURT: That is the charge against you, that you did possess it unlawfully with intent to deliver it.

"MR. FARRIS: And I’m pleading guilty.

"THE COURT: Well, did you possess marihuana on that date?

"MR. FARRIS: Yes.

* * *

"THE COURT: And how much — what was the answer, yes?

"MR. FARRIS: It was over two ounces.

"THE COURT: Over two ounces?

"MR. FARRIS: Yes.

"THE COURT: About how many ounces was it?

"MR. FARRIS: Oh, I really couldn’t tell you exactly. It was pounds.

"THE COURT: Pounds, plural?

"MR. FARRIS: Yes, sir.

"THE COURT: And there are what, sixteen ounces in a pound?

"MR. FARRIS: Yes, sir.”

*421There is no doubt an equation was created. It appears to us, however, that the determinitive quantum was not "pounds” but the fact that it was over two ounces. It is clear from the appellant’s response that he thought the crucial measure was two ounces. We believe both the appellant and the court were guided by the presumption.

Our conclusion is reinforced by the court’s reference to the burden cast upon the accused to rebut the offending presumption (at sentencing):

"The Defendant, by his own admission, had in his possession a substantial quantity of marihuana with the intent to deliver it. That is, he pled guilty to that offense, and no attempt [sic] to rebut the portion of the statute which gives rise to the presumption.”

Defendant claims that the trial judge erroneously failed to determine the factual basis for the plea since there was nothing other than the two ounce presumption to indicate that he intended to deliver the marijuana. The people claim that, because of the amount involved, the intent to deliver is readily inferable.

Relevant portions of GCR 1963, 785.7(3) read:

"(b) The court shall not accept a plea of guilty until it is satisfied that a crime was committed and, through personal interrogation of the defendant, that defendant participated therein.

"(c) If defendant’s description of his actions and any otherwise admissible evidence presented to the court on the record during the plea taking proceedings would not substantially support a finding that defendant is in fact guilty of the charged offense or the offense to which he is pleading, the plea shall be rejected by the court.”

As we perceive the court rule, this subsection *422provides a double protection to an accused. That is, a trial judge is required both to assure himself that facts supportive of guilt are adduced and to satisfy himself that the crime was in fact committed by the defendant.

In the instant case, the record reveals that the attention of the trial judge focused on the amount involved and not on defendant’s intent. Although the people argue that the trial judge considered the quantity as circumstantial evidence of intent, the record reveals that the judge impermissibly considered the quantity as a substitute for the element of intent. If, as we held in Serra, it is irrational for a jury to presume intent solely from the fact that more than two ounces were possessed, it is equally improper for the plea taking judge to reach the same conclusion.

We reluctantly conclude that the record does not reveal the factual basis for a finding of specific intent to deliver. As was said in People v Schneff, 392 Mich 15, 25-26; 219 NW2d 47, 53 (1974):

"It is our opinion that MCLA 768.35; MSA 28.1058 [to the same effect as GCR 1963, 785.7(3)(b)] requires the trial court to derive the factual basis for a guilty plea directly from defendant or through testimony developed at a full adversarial trial. This procedure also provides the best method for assurance that a defendant understands the nature of the charge to which he is pleading. A complete recitation of facts from the defendant also provides for increased appellate certainty when reviewing challenged guilty pleas.” (Footnote omitted.)

Reversed and remanded.

(concurring in part, dissenting in part). I concur with my brothers that this cause *423must be reversed and remanded because of noncompliance with GCR 1963, 785.7(3), but I cannot agree with their position, based upon People v Serra, 55 Mich App 514, 223 NW2d 28 (1974), that the trial court would have been in compliance with the court rule if it had inferred the intent to deliver from the large quantity of marihuana possessed.

My quarrel is not with the majority’s reasoning in the case at bar, but rather with this Court’s opinion in Serra. I read Serra to say that a jury may readily infer that a person possessing a large amount of a controlled substance intended to deliver it.1 I do not believe that the Serra Court intended such a reading, nor do I think that such an inference should be allowed. It is my opinion that neither a judge nor a jury may rely on the amount of a controlled substance possessed to determine whether a defendant had the intent to deliver.

It is true that Serra twice recognized that intent to deliver could be permissibly inferred from the quantity involved.2 However, I do not believe that the Serra Court intended this to mean that a defendant could be convicted of the charge of possession with intent to deliver by merely showing that the defendant possessed a large amount of marihuana or any other controlled substance. Such a reading would totally obliterate the beneficial effects of Serra’s holding that the two-ounce presumption rule is unconstitutional.

It is my opinion that in declaring the two-ounce presumption rule unconstitutional, the Serra Court inadvertently, through an unfortunate choice of words, actually strengthened that rule by *424implying that a jury could properly infer that a person possessing a large amount of a controlled substance intended to deliver it. If this be the true meaning of Serra, then we have not denied "the prosecutor the use of this evidentiary crutch”, but rather we have sanctioned its use to an extent even greater than was employed before the Serra opinion was issued.

To say that a jury may not presume intent from the amount of a controlled substance possessed but it may infer such intent is not only illogical and ambiguous, but furthermore assumes that the average jury will be able to make the legal distinction between presumption and inference. Labels alone are not sufficient to make the distinction. Appellate courts, trial courts and advocates have had difficulty over the years when attempting to distinguish a presumption from an inference. If the legal profession has had such difficulty, how can we honestly expect a jury of laymen to be able to do so?

It is my opinion that Serra, as written, is for all intents and purposes, a legal nullity. The opinion simply did not go far enough in its attempt to throw out the harmful effects of the two-ounce presumption rule. By allowing the jury to draw an inference of intent from the mere fact of the amount of a controlled substance possessed, the Serra Court has placed defendant in the same position that he was in before the Serra opinion was released. The only evidence which can effectively rebut the inference is the defendant’s own testimony as to his intent. This was true before Serra and it is still true today. Thus, despite Serra, a defendant is still compelled to take the stand in violation of his right against self-incrimination *425granted by both the United States3 and the Michigan4 Constitutions. I am sure that the members of the Serra Court did not intend such a result. Rather, I believe that the Serra Court intended their decision to encompass what I have mentioned in this opinion. That is, if it is irrational for a jury to presume intent solely from the fact that more than two ounces were possessed, it is equally irrational for a jury or a trial judge to infer the requisite intent from that fact. Attempting to effectively distinguish a presumption from an inference is an exercise in futility, particularly in cases tried before a jury. Neither the presumption nor the inference should be permitted.

I wish to make one more point before closing. The offense with which defendant was charged was possessing a controlled substance with intent to deliver. Intent to deliver is an element of this offense which should be proven by the prosecutor5 just like any other element of any other offense, i.e., by means of evidence. Prosecutions involving controlled substances do not require either a presumption or an inference to convince the trier of fact that the possessor intended something other than personal use. Regardless of the amounts at issue, the prosecution should be required to introduce evidence of the kind the prosecutor in Serra suggested the defendant should be forced to use, namely, expert witnesses and acquaintances of the defendant. The trier of fact will then be free to weigh the evidence on both sides and resolve the question before it without regard to presumptions or inferences of any kind.

*426Because of the shortcomings of the Serra opinion, I would like to see this case pursued to our Supreme Court. However, because of the noncompliance with GCR 1963, 785.7(3), I concur in the result called for in the opinion of the majority.