¶1The question for decision is, whether, the defendant having been charged in a single count with a sale of intoxicating liquor to a minor in violation of R. L. c. 100, § 62, had the right where the evidence for the prosecution tended to prove two distinct sales on different days, but all within six years from the date of the complaint, to require the government to elect upon which one of the two it intended to rely for a conviction. If counts for each sale had been joined, the defendant would have had ample notice of the charges, which could be distinctly identified by the record, and, while the trial judge upon his motion might have ordered an election, the denial of the request, being purely discretionary, would not have been ground of exception. Commonwealth v. Sullivan, 104 Mass. 552. Commonwealth v. Bennett, 118 Mass. 443. Commonwealth v. Pratt, 137 Mass. 98.
¶2But at the close of the government’s evidence, while the defendant had been set to the bar to face a single issue, two distinct offenses had been put in evidence, to either one of which the averments of the complaint were applicable. By the common law as well as under the Constitution of the Commonwealth, the defendant could not be convicted of both without a violation of the right guaranteed to him, that, when charged with the com*24mission of crime, “ every subject shall have a right to produce all proofs that may be favorable to him ” on the issue of his guilt or innocence as set forth in the indictment or- complaint. Commonwealth v. Blood, 4 Gray, 31, 32. Commonwealth v. Dean, 109 Mass. 349, 352. O’Connell v. The Queen, 11 Cl. & F. 155, 241. Commonwealth v. King, 202 Mass. 379, 389.
¶3There is no presumption, that the defendant ought to have anticipated that the scope of the testimony to be used against him would not correspond with the essential allegations of the complaint, and that he must expect to be tried for two offenses, although the. averment of time, while necessary, need not be proved as laid. Commonwealth v. Dillane, 11 Gray, 67. The great embarrassment, however, to which he would be subjected in the preparation and presentation of his defense if under the charge of a single crime any number of similar yet distinct crimes may be proved until perhaps there finally might be one of the number sufficiently satisfactory to the jury, is not the only grave objection.
¶4It is forcibly pointed out in State v. Chisnell, 36 W. Va. 659, that where in the unlawful sale of intoxicating liquors two distinct misdemeanors are proved, while only a single sale is charged, some of the jury may be satisfied of the defendant’s guilt as to one sale, while other jurors are convinced only as to the second sale, but all finally concur in a verdict of guilty because taken together they are convinced that the defendant has violated the law. It is also manifest, that the wrong which may be done does not end with the verdict and judgment. If again prosecuted, there being no means of identification of the actual offense upon which the jury returned their verdict, the former conviction would not be a protection from a second conviction. There is no bar unless the offense charged in the first complaint was the same offense for which the defendant is charged in the second complaint. Commonwealth v. Robinson, 126 Mass. 259, 260, 261. State v. Brown, 58 Iowa, 298. Wharton, Grim. Ev. (9th ed.) § 104.
¶5The decisions, while recognizing without exception the right to compel an election, are not entirely in accord as to when the defendant must exercise it, but by our practice, and the great weight of authority, he should do so at the close of the gov*25ernment’s evidence, and before being called upon to open his defense. Commonwealth v. O’ Connor, 107 Mass. 219. Commonwealth v. O’Hanlon, 155 Mass. 198. Williams v. State, 77 Ala. 53. Scruggs v. State, 111 Ala. 60. State v. Chisnell, 36 W. Va. 659. State v. Smith, 22 Vt. 74. State v. Hurd, 101 Iowa, 391. Lebkovitz v. State, 113 Ind. 26. Goodhue v. People, 94 Ill. 37.
¶6If before introducing his proof the defendant did not except to the denial of his motion to order an election, the right had not been waived, and, the renewal of the request at the close of all the evidence but before the arguments began not having been too late, the refusal to grant it, to which he duly excepted, was erroneous.
¶7Nor was the error cured by the voluntary concession of the district attorney in his closing argument, that he would ask for conviction only on one sale. The right to compel a choice was a personal privilege, not a matter of favor dependent upon the good will or sense of justice of the prosecuting officer, and as the defendant’s counsel was put to the disadvantage of arguing a different case from that which was finally left to the jury for decision, the defendant had been prejudiced.
¶8A new trial, therefore, must be ordered, and whether any exception was saved to the instructions becomes unimportant, and need not be determined.
¶9 Exceptions sustained.