Holding1:¶27 In Wisconsin, circuit judges do not involve themselves in plea bargaining. State v. Erickson, 53 Wis. 2d 474, 481, 192 N.W.2d 872 (1972); Rahhal v. State, 52 Wis. 2d 144, 150, 187 N.W.2d 800 (1971); State v. Wolfe, 46 Wis. 2d 478, 487, 175 N.W.2d 216 (1970). In Farrar v. State, 52 Wis. 2d 651, 657, 191 N.W.2d 214 (1971), this court declared that “any advance understanding between a prosecutor and defendant must not involve the trial judge.”