From the Web site:
Criminal Law Decisions Online (CLDO) covers all criminal law decisions handed down by the U.S. Supreme Court and Wisconsin Supreme Court, and published cases of the Wisconsin Court of Appeals, from July 1, 1977, through December 15, 2006.
This system replicates, in an online format, the Master Compilation of Criminal Law Decisions documents previously published by the Department of Justice, and it retains the table of contents and numerical digesting system used in print versions of the Master Compilation.
Decisions of the Wisconsin Supreme Court and the Wisconsin Court of Appeals which were published after the July 1, 2001 term are also linked to the court’s public website.
Apparently, when CLDO first started out it wasn’t available to the public, but it is now. Thanks to Bill Ebbott for the tip.