This summary is not the rule. The rule text controls.
When a magistrate holds a hearing to decide if there's enough evidence against a corporation charged with a crime, they have to write down their decision. After looking at all the evidence and testimony presented, the magistrate must state clearly on the written depositions whether they believe there's enough proof to move forward with the case, or whether there isn't enough evidence to support the charge.
Once the magistrate makes this decision, they can't just keep it to themselves. They have to send the depositions along with their written certificate to the proper place, following the same process used for regular preliminary examinations in other criminal cases. This means corporations facing criminal charges go through a similar process to individuals, where a magistrate reviews the evidence early on to decide if the case has enough merit to continue.
This rule basically makes sure there's a paper trail and a clear decision point early in the case. It protects corporations from being dragged through a full trial without someone first checking that there's real evidence against them.