Wis. Stat. § 971.02
An objection to the sufficiency of a preliminary examination is waived if it is not raised prior to pleading. Wold v. State, 57 Wis. 2d 344, 204 N.W.2d 482 (1973). When the defendant waived a preliminary examination and wished to plead, but the information was not ready and was only orally read into the record, the defendant was not harmed by the acceptance of his plea before the filing of the information. Larson v. State, 60 Wis. 2d 768, 211 N.W.2d 513 (1973). The scope of cross-examination by the defense was properly limited at the preliminary hearing. State v. Russo, 101 Wis. 2d 206, 303 N.W.2d 846 (Ct. App. 1981). The denial of a preliminary examination to a corporation is constitutional. State v. C & S Management, Inc. 198 Wis. 2d 844, 544 N.W.2d 237 (Ct. App. 1995), 94-3188. A preliminary hearing to determine probable cause for detention pending further proceedings is not a "critical stage" in a prosecution requiring appointed counsel. Gerstein v. Pugh, 420 U.S. 103 (1975). Preliminary examination potential. 58 MLR 159. The grand jury in Wisconsin. Coffey, Richards, 58 MLR 518.