Whether Enoch's failure to file a written post-trial motion waived his unpreserved claims on appeal, including in a capital case.
Holding
Yes. A defendant must both make a timely trial objection and include the issue in a written post-trial motion to preserve an alleged trial error for review; the absence of a post-trial motion limited review to certain constitutional claims, sufficiency of the evidence, and plain error.
Reasoning
Illinois's preservation rule serves distinct purposes at trial and after trial. A contemporaneous objection gives the trial judge an opportunity to correct an error when it occurs. A written motion for a new trial, required by section 116-1 of the Code of Criminal Procedure, focuses the court and the parties on the errors the defendant considers significant and may prevent unnecessary appeals or reversals.
The court rejected the argument that either a trial objection or a post-trial motion alone is enough. For errors that could have been raised during trial, preservation requires both. The statutory requirement that a new-trial motion be written and specify its grounds cannot be disregarded merely because counsel objected at trial.
The constitutional requirement that the supreme court review capital cases does not create a right to unrestricted appellate review of every unpreserved claim. When no written post-trial motion is filed, the court will review properly raised constitutional issues that could later be raised in post-conviction proceedings, challenges to the sufficiency of the evidence, and plain errors affecting substantial rights.
This limitation disposed of several of Enoch's claims that were not preserved, including claims concerning the prosecutor's opening statement, the validity of his jury-sentencing waiver, jury selection, the trial court's dangerousness finding, and most alleged evidentiary and instructional errors. The court concluded that the evidence of guilt was overwhelming, so no unpreserved trial error warranted review as plain error.