This summary is not the rule. The rule text controls.
Here's a summary of this rule in plain English:
When lawyers or judges argue about how a case should turn out, they often point to past court decisions to support their side. This rule explains which past decisions can be used this way in criminal cases.
Published decisions from Utah's Supreme Court and Court of Appeals can always be used as examples to support an argument. Unpublished decisions can be used too, but there's a catch. If someone wants to cite an unpublished decision, they have to give everyone else in the case, including the judge, an accurate copy of that decision as soon as they bring it up.
This rule makes sure everyone in the courtroom is working from the same information. Nobody can bring up a hidden or hard to find case without sharing it with the other side and the judge first.