---
title: "Chastidy R. Dillon-Amelung | KnowJudges"
canonical: "https://knowjudges.com/kyj/judge/chastidy-r-dillon-amelung-judge-missouri-20th-judicial-circuit-court-mo"
page_type: "judge_profile"
updated: "2026-09-25"
---

# Chastidy R. Dillon-Amelung

Missouri 21st Judicial Circuit Court · Judge

## Profile

- Court: Missouri 21st Judicial Circuit Court
- State: Missouri
- Role: Judge
- Service status: active
- Last verified: 2026-09-25

## Summary

Official statewide and applicable court procedural guidance applies to this judge.

## Before you appear

- Read the judge-specific standing order first when one is listed.
- Check the docket and case orders for requirements that supersede broader guidance.
- Confirm current remote-access and courtroom technology arrangements before the proceeding.

## Courtroom Rules

### media equipment advance approval

Scope: statewide

Missouri Court Operating Rule 16 requires advance approval for media equipment used for courtroom coverage and allows the judge to control the number and setup of media personnel and equipment.

Evidence excerpt: Failure to obtain advance approval for equipment may preclude its use in the proceeding.

[Missouri Court Operating Rule 16.04, Technical](https://www.courts.mo.gov/page.jsp?id=354)
Source checked: 2026-07-26

### device use in courtroom

Scope: statewide

Missouri courtroom device use for media coverage is not generally permitted unless authorized by the operating rule, a local court rule, or the judge presiding in the proceeding.

Evidence excerpt: No person may use any device capable of media coverage in a courtroom or court clerk's office unless specifically authorized

[Missouri Court Operating Rule 16.04, Technical](https://www.courts.mo.gov/page.jsp?id=354)
Source checked: 2026-07-26

### audio video recording

Scope: statewide

Missouri allows limited video and audio recording for media coverage under COR 16 technical limits, subject to judicial approval and courtroom controls.

Evidence excerpt: Not more than one videographer, using a single device, shall be permitted in the courtroom during a judicial proceeding at any time.

[Missouri Court Operating Rule 16.04, Technical](https://www.courts.mo.gov/page.jsp?id=354)
Source checked: 2026-07-26


## Sources

- [Official profile](https://www.sos.mo.gov/cmsimages/bluebook/2025-2026/5_Judicial.pdf)
- [Official roster](https://www.sos.mo.gov/cmsimages/bluebook/2025-2026/5_Judicial.pdf)
- [Missouri Secretary of State Official Manual official judicial roster](https://www.sos.mo.gov/cmsimages/bluebook/2025-2026/5_Judicial.pdf)
- [Missouri Court Operating Rule 16.04, Technical](https://www.courts.mo.gov/page.jsp?id=354)

## JSON-LD

```json
{
  "@context": "https://schema.org",
  "@graph": [
    {
      "@type": "WebPage",
      "@id": "https://knowjudges.com/kyj/judge/chastidy-r-dillon-amelung-judge-missouri-20th-judicial-circuit-court-mo",
      "url": "https://knowjudges.com/kyj/judge/chastidy-r-dillon-amelung-judge-missouri-20th-judicial-circuit-court-mo",
      "name": "Chastidy R. Dillon-Amelung | KnowJudges",
      "description": "Chastidy R. Dillon-Amelung, Missouri 21st Judicial Circuit Court. Source-linked judicial identity, courtroom procedures, and presentation guidance.",
      "dateModified": "2026-09-25",
      "isPartOf": {
        "@id": "https://knowjudges.com/#website"
      },
      "mainEntity": {
        "@id": "https://knowjudges.com/kyj/judge/chastidy-r-dillon-amelung-judge-missouri-20th-judicial-circuit-court-mo#judge"
      }
    },
    {
      "@type": "Person",
      "@id": "https://knowjudges.com/kyj/judge/chastidy-r-dillon-amelung-judge-missouri-20th-judicial-circuit-court-mo#judge",
      "name": "Chastidy R. Dillon-Amelung",
      "url": "https://knowjudges.com/kyj/judge/chastidy-r-dillon-amelung-judge-missouri-20th-judicial-circuit-court-mo",
      "jobTitle": "Judge",
      "worksFor": {
        "@type": "GovernmentOrganization",
        "name": "Missouri 21st Judicial Circuit Court"
      },
      "sameAs": [
        "https://www.sos.mo.gov/cmsimages/bluebook/2025-2026/5_Judicial.pdf"
      ]
    },
    {
      "@type": "BreadcrumbList",
      "itemListElement": [
        {
          "@type": "ListItem",
          "position": 1,
          "name": "KnowJudges",
          "item": "https://knowjudges.com/kyj"
        },
        {
          "@type": "ListItem",
          "position": 2,
          "name": "Missouri",
          "item": "https://knowjudges.com/kyj/state/missouri"
        },
        {
          "@type": "ListItem",
          "position": 3,
          "name": "Chastidy R. Dillon-Amelung",
          "item": "https://knowjudges.com/kyj/judge/chastidy-r-dillon-amelung-judge-missouri-20th-judicial-circuit-court-mo"
        }
      ]
    }
  ]
}
```

## Biography

### Professional career

- Chastidy Dillon‐Amelung is an Associate Circuit Judge for the 21st Judicial Circuit Court in St. Louis County, Missouri, appointed in April 2024, with a background in public service, private legal practice, and judicial administration
- Position: Associate Circuit Judge, Division 44, 21st Judicial Circuit Court, St. Louis County, MO
- held the role of St. Louis County Commissioner and traffic court commissioner

### Education


### Additional information

- Managed her own private legal practice since 2012
- The 2026 Judicial Performance Review Committee recommends retaining Judge Dillon‐Amelung, citing positive evaluations from lawyers, jurors, and peers
- handling criminal defense, administrative licensing, and estate/tax planning
- Chastidy Dillon‐Amelung — St. Louis County Courts St. Louis County Courts



## Published courtroom rules

### Shared court rules

- [Missouri Court Operating Rule 16.04, Technical](https://knowjudges.com/courtroom-rules/national-shared-set-b0a3408119d84bbcc3619511) — Scope is limited to the court class in the source claim.  Shared court context only; case-type restrictions, exceptions, later amendments and case orders apply. This is not a personal preference or a complete rules inventory. [Official source](https://www.courts.mo.gov/page.jsp?id=354). Collected 2026-07-26.