This summary is not the rule. The rule text controls.
If a young person is being held in a secure detention facility without a judge first ordering it, separate state guidelines control how that works. These are found in Utah's administrative rules, specifically Title R547, Chapter 13, which lays out the standards for admitting youth into secure detention centers.
In practice, this means a court order isn't always required before a minor can be placed in detention. Instead, detention staff follow the specific criteria set out in those administrative guidelines to decide whether admission is appropriate. Anyone wanting to understand exactly when and how a young person can be detained without a court order first needs to look at R547-13 for the full details.