A grand jury may report progress and return indictments to the court from time to time during its session and until discharged.
Wis. Stat. § 968.50
A grand jury performs a judicial rather than a legislative function; therefore, a progress report unconnected to an indictment may not be made public. State ex rel. Caledonia v. Racine County Ct. 78 Wis. 2d 429, 254 N.W.2d 317 (1977).