This summary is not the rule. The rule text controls.
If someone accuses another person of a crime and the case goes to a preliminary hearing, a judge looks at the evidence to decide if there's enough to move forward. Sometimes the judge decides the case should be thrown out and the accused person should be let go.
When this happens, the judge also checks why the case was filed. If the judge decides the person who made the accusation acted out of spite or bad intentions, and had no real reason to believe a crime happened, the judge can make that person pay the court costs. This means the accuser, not the taxpayers or the accused person, has to cover the costs of the case.
The judge writes this decision into the official court record. Once that happens, the accuser owes the money just like anyone who owes a court judgment. If they don't pay, the court can take legal action to collect the money, the same way it would for any other unpaid court debt.
This rule protects people from false or spiteful accusations. It makes sure that someone who falsely accuses another person of a crime, without good reason, can be held responsible for the costs their accusation caused.