The State of New York indicted Santobello in 1969 on two felony counts of Promoting Gambling in the First Degree and Possession of Gambling Records in the First Degree. Santobello initially entered a plea of not guilty to both counts. After negotiations, the Assistant District Attorney agreed to permit a plea to the lesser-included offense of Possession of Gambling Records in the Second Degree and promised to make no recommendation as to sentence.
On June 16, 1969, Santobello withdrew the not guilty plea and entered a guilty plea to the lesser charge. The court accepted the plea after Santobello confirmed it was voluntary and the facts described by the prosecutor were true. A series of delays followed, owing primarily to the absence of a pre-sentence report, so that by September 23, 1969, Santobello had still not been sentenced.
By that date petitioner acquired new defense counsel. Petitioner's new counsel moved immediately to withdraw the guilty plea. In an accompanying affidavit, petitioner alleged that he did not know at the time of his plea that crucial evidence against him had been obtained as a result of an illegal search. In addition to his motion to withdraw his guilty plea, petitioner renewed the motion to suppress and filed a motion to inspect the grand jury minutes. These motions in turn caused further delay until November 26, 1969, when the court denied all three and set January 9, 1970, as the date for sentencing.
On January 9, 1970, Santobello appeared before a different judge because the original judge had retired. A new prosecutor replaced the one who negotiated the plea and recommended the maximum one-year sentence, citing Santobello’s criminal record and alleged links with organized crime. Defense counsel objected on the ground that the State had promised no sentence recommendation and sought an adjournment to prove the promise, though the State later conceded in subsequent proceedings that the promise had been made.
The sentencing judge imposed the maximum one-year sentence at the New York City Correctional Institution for men, stating that the prosecutor’s recommendation did not influence the decision. Santobello obtained a certificate of reasonable doubt and was admitted to bail pending appeal. The Appellate Division unanimously affirmed the conviction, and leave to appeal to the New York Court of Appeals was denied. Santobello then sought certiorari, which the Supreme Court granted.