What is the legal test required by the Court to review the record and determine if there are any arguable issues on appeal?

We appointed counsel to represent defendant on appeal. Counsel filed an opening brief that sets forth the facts and procedural history of the case and requests this court to review the record and determine whether there are any arguable issues on appeal. (People v. Wende (1979) 25 Cal.3d 436.) Defendant was advised by counsel of the right to file a supplemental brief within 30 days from the date the opening brief was filed. Defendant filed a timely supplemental brief arguing reversal is warranted for various reasons. In addition to undertaking a review of the record as required by Wende, we will address the issues raised in defendant's supplemental brief.

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