Defendant was charged with murder in the first degree, CL 1948, § 750.316 (Stat Ann 1954 Rev § 28.548), and, after a preliminary examination, he was bound over to Recorder’s Court where he subsequently entered a plea of guilty to murder in the second degree, CL 1948, § 750.317 (Stat Ann 1954 Rev § 28.549). This timely claim of appeal is grounded on three contentions of error. First, the preliminary examination failed to establish corpus delicti. Second, the trial court failed to comply with the requirements of CL 1948, § 768.35 (Stat Ann 1954 Rev § 28. 1058), the examination of defendant having failed to reveal all of the elements of the crime. Third, the trial court failed to conduct a separate hearing to determine the degree of the crime pursuant to CL 1948, § 750.318 (Stat Ann 1954 Rev § 28.550). The plaintiff has filed a motion to affirm the conviction.

*355 Alleged defects in the preliminary examination are waived upon the entry of a guilty plea. People v. Collins (1968), 380 Mich 131. The trial court did examine the defendant as to the facts of the crime and his participation therein. People v. Stearns (1968), 380 Mich 704. “The prosecution is under no obligation to prove anything during the examination by the court of one seeking to plead guilty.” People v. Paul (1968), 13 Mich App 175, 177. Defendant does not contend that his plea was untruthful or involuntary. Pie does not assert his innocence.

“A convicted defendant no longer enjoys the presumption of innocence. (Citations omitted.) He has the burden of showing something more than technical noncompliance with a rule. Absent a showing of violation or denial of constitutional rights, he has the obligation of alleging in a motion to withdraw plea such facts as would, if true, substantiate a finding that there was noncompliance which resulted in a miscarriage of justice.” People v. Winegar (1968), 380 Mich 719, 733.

Defendant specifically pled guilty to murder in the second degree and, therefore, no hearing was necessary to determine the degree of the crime. People v. Grillo (1948), 319 Mich 586; People v. Carl (1968), 11 Mich App 226.

The motion to affirm the conviction is granted.