Mark D. Pfeiffer at a glance
- Current role
- Judge
- Court
- Missouri Court of Appeals, Western District
- Jurisdiction
- Missouri · State
- Judicial service
- Active
Mark D. Pfeiffer
Judge · Missouri Court of Appeals, Western District
Available research
AI abuse cases
1 caseAI-related ruling · August 4, 2026
Whitehead v. Moore
- Court response
- Appeal Dismissed (partly based on AI misuse)
Biography
Judicial service
- Judge, Missouri Court of Appeals, 2009-present
Education
- Westminster College · BA
- University of Missouri-Columbia · JD
Courtroom rules and guidance
Media Equipment Advance Approval
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.
Failure to obtain advance approval for equipment may preclude its use in the proceeding.Missouri Court Operating Rule 16.04, Technical ↗
Device Use In Courtroom
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.
No person may use any device capable of media coverage in a courtroom or court clerk's office unless specifically authorizedMissouri Court Operating Rule 16.04, Technical ↗
Audio Video Recording
Missouri allows limited video and audio recording for media coverage under COR 16 technical limits, subject to judicial approval and courtroom controls.
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 ↗
Sources
Missouri Secretary of State Official Manual official judicial roster
Identity source · HTML · checked July 26, 2026
https://www.sos.mo.gov/cmsimages/bluebook/2025-2026/5_Judicial.pdfCourtListener judicial biographical directory
Identity source · HTML · checked August 2, 2026
https://www.courtlistener.com/person/7737/mark-d-pfeiffer/Missouri Court Operating Rule 16.04, Technical
Judge research source · HTML · checked July 26, 2026
https://www.courts.mo.gov/page.jsp?id=354