By his plea of guilty, defendant was convicted of prison escape, MCLA 750.193; MSA 28.390. At sentencing and before sentence was pronounced, defendant requested to withdraw his plea. This request was denied; defendant was sentenced and he appeals.
The plea of guilty occurred December 4, 1973, and it was accepted the same day. Sentencing was set for February 7, 1974. By a letter to the judge dated January 27, 1974, defendant asserted for the first time that he escaped to avoid sexual abuse by other inmates. By handwritten note dated January 31, 1974, the judge responded;
"Mr. Bovee:
There is no way I can verify the pressure placed on you without a polygraph. Every escapee can concoct such a story.
If you wish to withdraw your plea to exercise your right to a trial, I would have no objection.
/s/ Gordon Britten”
*729The sentencing set for February 7, 1974, was adjourned to March 7, 1974, at defendant’s request but without a reassertion of his claim of sexual abuse and without any request to withdraw his plea of guilty. March 7, 1974, sentencing was again adjourned to March 21, 1974, at defendant’s request but without a reassertion of his claim of sexual abuse and without any request to withdraw his plea of guilty. On March 21, 1974, defendant, through his attorney, first requested to withdraw his plea of guilty. The attorney had no prior knowledge of defendant’s desire to withdraw his plea.
On appeal, defendant asserts that the trial judge abused his discretion in denying the request to withdraw the plea of guilty. Alternatively, defendant claims that since the trial court had notice of a possible defense, there was reason for the trial court to doubt the truth of the plea, and that it was error for the trial court not to vacate the plea, or minimally to reinquire as to the veracity thereof.
Withdrawal of a plea of guilty is governed by GCR 1963, 785.7(4):
"The court may take the proffered plea under advisement. However, until the court accepts the plea on the record, the defendant may withdraw it as a matter of right without assigning cause. After the court accepts the plea the court may on motion of the defendant set aside his plea of guilty or nolo contendere; or the court may, sua sponte with the consent of the defendant, set aside his plea.”
The plea here involved had been accepted. As we read the controlling rule, defendant’s motion to withdraw the plea had to be based on cause shown and the motion was addressed to the court’s discre*730tion. The only reference in the sentencing transcript to plea withdrawal is by defendant’s attorney:
"Your Honor — my client just informed me he desires a withdrawal of his guilty plea.”
No cause is shown and it was not an abuse of discretion for the trial court to deny the motion.
Starting from the premise that People v Harmon, 53 Mich App 482; 220 NW2d 212 (1974), and People v Luther, 53 Mich App 648; 219 NW2d 812 (1974), establish that imminent threat of homosexual attack by other inmates is a valid defense to an escape charge, defendant advances his alternate issue, namely: since the trial court had notice of a possible defense, there was reason for the trial court to doubt the truth of the plea. Therefore, it was error for the trial court not to vacate the plea, or minimally to reinquire as to the veracity thereof.
This argument would have some validity if the trial court had the kind of notice of a possible defense that required him to doubt the truth of defendant’s plea, thus requiring further inquiry or vacation of the plea. On this record, the trial judge had no such notice. The trial court declined to accept, as we would have, the unsworn, self-serving statements of defendant concerning sexual abuse by other inmates. The trial court did afford defendant the opportunity to substantiate the charges by taking a polygraph test and also indicated that he had no objection to defendant withdrawing his plea.
Defendant declined the polygraph test. He never *731again asserted sexual abuse by other inmates. So far as the record indicates, he never made such a claim to his attorney. Even when he requested withdrawal of his plea, defendant did not assert the sexual abuse claim. The record does not support defendant’s claim that the trial court had notice of a possible defense that required him to doubt the truth of defendant’s plea.
Affirmed.
Bashara, J., concurred.