Wis. Stat. § 971.06
Inaccurate legal advice renders a plea an uninformed one and can compromise the voluntariness of the plea. State v. Woods, 173 Wis. 2d 129, 496 N.W.2d 144 (Ct. App. 1992). The decision to plead guilty is personal to the defendant. A defendant's attorney cannot renegotiate a plea agreement without the defendant's knowledge and consent. State v. Woods, 173 Wis. 2d 129, 496 N.W.2d 144 (Ct. App. 1992). Whether to grant a defendant's motion to change a plea is within the court's discretion. State v. Kazee, 192 Wis. 2d 213, 531 N.W.2d 332 (Ct. App. 1995). The decision to withdraw a not guilty by reason of mental defect plea belongs to the defendant, and not counsel. State v. Byrge, 225 Wis. 2d 702, 594 N.W.2d 388 (Ct. App. 1999), 97-3217. If a defendant enters a plea of not guilty by reason of mental disease or defect under sub. (1) (d) without an accompanying not-guilty plea, the defendant waives the constitutional right to a trial as to the guilt phase and admits that he or she committed the criminal act. State v. Fugere, 2018 WI App 24, 381 Wis. 2d 142, 911 N.W.2d 127, 16-2258.