the evidence complained of.” The case is here on certiorari. 273 U. S. 685.
In support of the rulings below, the United States cites Commonwealth v. Ervine, 8 Dana (Ky.) 30; People v. Jacobs, 165 App. Div. 721; State v. Carta, 90 Conn. 79; People v. Boyd, 67 Cal. App. 292, 302; and People v. Steinmetz, 240 N. Y. 411. The arguments for admissibility to be gleaned from these cases are that the introduction of the withdrawn plea shows conduct inconsistent with the claim of innocence at the trial; that the plea is a statement of guilt having the same effect as if made out of court; that it is received on the principle which permits a confession of the accused in a lower court to be shown against him at his trial in the higher court; that it is not received as conclusive, and, like an extra-judicial confession, it is not sufficient without other evidence of the corpus delicti. It is sometimes likened to prior testimony of the defendant making in favor of the prosecution.
Other decisions support the petitioner’s contention that a plea of guilty withdrawn by leave of court is not admissible on the trial of the issue arising on the substituted plea of not guilty. Heim v. United States, 47 App. D. C. 485; State v. Meyers, 99 Mo. 107, 119; People v. Ryan, 82 Cal. 617; Heath v. State, 214 Pac. (Okla.) 1091. And see White v. State, 51 Ga. 286, 290; Green v. State, 40 Ela. 474, 478. We think that contention is sound. A plea of guilty differs in purpose and effect from a mere admission or an extra-judicial confession; it is itself a conviction. Like a verdict of a jury it is conclusive. More is not required; the court has nothing to do but give judgment and sentence. Out of just consideration for persons accused of crime, courts are careful that a plea of guilty' shall not be accepted unless made voluntarily after proper advice and with full understanding of the consequences. When one so pleads