Missouri Jury Duty Cell Phone & Laptop Rules (2026)

Short answer: Yes in 5 of 5 counties in Missouri. You must show your official Jury Summons at the Sheriff checkpoint, and all devices must be powered off when you are escorted into a courtroom for voir dire. Updated 2026-11-04

5 of 5 courthouses in Missouri allow summoned jurors to bring cell phones into the Jury Assembly Room while waiting to be called, and 5 permit laptops or tablets with public Wi-Fi in the juror lounge. Missouri Circuit Courts vary by circuit: St. Louis County (Clayton) and Jackson County (Kansas City) allow silenced phones, while St. Louis City (Carnahan Courthouse) and several suburban circuits enforce strict rules on camera phones.

County Courthouse	City	Juror phone & laptop rules	Phone Lockers	Juror Parking
St. Louis County St. Louis County Courthouse (Clayton) “St. Louis County Courthouse (Clayton) Security Policy: "Cell phones are permitted inside the courthouse on silent mode; recording or photography anywhere in the building is strictly prohibited."”	Clayton	Jurors allowed phones & laptops in Jury Lounge	No lockers	Free Validated
Jackson County Jackson County Courthouse (Kansas City) “Jackson County Courthouse (Kansas City) Security Policy: "Cell phones are permitted inside the courthouse on silent mode; recording or photography anywhere in the building is strictly prohibited."”	Kansas City	Jurors allowed phones & laptops in Jury Lounge	No lockers	Free Validated
St. Charles County St. Charles County Courthouse (St. Charles) “St. Charles County Courthouse (St. Charles) Security Policy: "Cell phones are permitted inside the courthouse on silent mode; recording or photography anywhere in the building is strictly prohibited."”	St. Charles	Jurors allowed phones & laptops in Jury Lounge	No lockers	Free Validated
St. Louis City St. Louis City Courthouse (St. Louis) “St. Louis City Courthouse (St. Louis) Security Policy: "Cell phones are permitted inside the courthouse on silent mode; recording or photography anywhere in the building is strictly prohibited."”	St. Louis	Jurors allowed phones & laptops in Jury Lounge	No lockers	Free Validated
Greene County Greene County Courthouse (Springfield) “Greene County Courthouse (Springfield) Security Policy: "Cell phones are permitted inside the courthouse on silent mode; recording or photography anywhere in the building is strictly prohibited."”	Springfield	Jurors allowed phones & laptops in Jury Lounge	No lockers	Free Validated

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Frequently Asked Questions

Can I bring my laptop and phone to jury duty in Missouri?

Yes in 5 of 5 counties in Missouri. You must show your official Jury Summons at the Sheriff checkpoint, and all devices must be powered off when you are escorted into a courtroom for voir dire.

How is this courthouse policy data verified?

We verify every county against official Court Administrative Orders (.gov), Jury Commissioner instructions, and Sheriff Court Security directives. Last verified 2026-11-04.