Cass County Criminal History Records
Cass County criminal history records are managed through the 17th Judicial Circuit Court and the Cass County Sheriff's Office at the Justice Center in Harrisonville. Located just south of the Kansas City metro area, Cass County processes a significant number of criminal cases each year. This page walks through all the ways to search criminal records in Cass County, including online tools, in-person options, and state-level databases.
Cass County Quick Facts
Cass County Circuit Court Criminal Records
The 17th Judicial Circuit Court handles all criminal cases in Cass County. The Circuit Clerk is Kim York. The office is at the Justice Center, 2501 W. Mechanic St. in Harrisonville. Phone: (816) 380-8234. The court has multiple divisions with presiding judges and associate circuit judges. Staff process criminal, civil, traffic, probate, and family filings.
Court records from Cass County are on Missouri CaseNet. This free statewide tool lets you search by name, case number, or filing date. Select Cass County to filter results. CaseNet shows charges, docket entries, and judgments. No account needed. Sealed cases won't appear.
The Cass County Sheriff's Office manages the Justice Center where both the court and the sheriff operate.
For copies of court documents, visit the clerk at the Justice Center. Bring a name or case number. Copy fees are $2 for the first page and 25 cents each after. Certified copies are available for legal use at a higher fee.
Cass County Sheriff's Office
Sheriff Jeff Weber runs the Cass County Sheriff's Office from the Justice Center at 2501 W. Mechanic St. in Harrisonville. Phone: (816) 380-8317. The office handles patrol, investigations, court security, civil process, and jail operations. Specialized units cover investigations, patrol, and corrections.
The Cass County government website provides additional information about county services and record access.
Records requests for incident reports and arrest data go through the Sheriff's Office. Under Section 43.503 RSMo, Cass County law enforcement must report arrest data to the Highway Patrol's central repository. For a statewide search, use machs.mo.gov. The department works with municipal police departments across the county on shared cases and data reporting.
Cass County Jail and Booking Records
The Cass County Jail is part of the Justice Center at 2501 W. Mechanic Street in Harrisonville. Call (816) 380-8317 for inmate information. The Sheriff's Office runs the jail. It holds both pre-trial detainees and sentenced inmates.
Booking records include the date of arrest, charges, bond amount, and court schedule. These records form part of each person's criminal history file. Data from the Cass County Jail feeds into local and state databases. Inmate information may also be available through the Sheriff's Office website. The jail staff works with the 17th Circuit Court on court dates and case management.
Cass County Criminal Prosecution
Ben Butler is the Cass County Prosecuting Attorney. The office is at 2501 W. Mechanic St. in Harrisonville. Phone: (816) 380-8250. The prosecutor reviews all law enforcement cases, decides on charges, and handles prosecution in court. Victim services and advocacy are available through the office.
All criminal filings from this office are on record at the Circuit Clerk's office and show on CaseNet. If you need updates on a pending case, the Prosecuting Attorney's Office can help direct your questions to the right place.
How to Search Cass County Criminal History
Start with CaseNet for free results. Go to courts.mo.gov/casenet, pick Cass County, and type in a name or case number. Results show charges, court dates, and outcomes. Fast and easy.
For a statewide check, use MACHS at machs.mo.gov. Name-based searches cost $15. Fingerprint checks run about $43 total. You need an account. MACHS pulls from the Highway Patrol's central criminal history database and covers every county in Missouri.
You can also visit the Justice Center in Harrisonville for in-person lookups. Bring an ID and a name or case number. The Missouri Sunshine Law (Chapter 610) applies. Government offices must respond within three business days.
- CaseNet: free, no account
- MACHS name search: $15
- MACHS fingerprint check: about $43
- Court copies: $2 first page, $0.25 each after
Some Cass County records can be expunged under Section 610.140 RSMo. Eligible individuals file a petition in the circuit court where the case was handled. Once granted, the record is sealed from public searches.
Criminal History Expungement in Cass County
Section 610.140 RSMo allows people to petition for expungement of certain criminal records in Cass County. The waiting period is three years for most misdemeanors and seven years for eligible felonies. Not all crimes qualify. Violent offenses, sex crimes, and DWI charges are not eligible.
You file the petition in the circuit court where the arrest or charge took place. The court will set a hearing date. If no one objects and the person meets all the conditions, the judge can order the record sealed. Once sealed, the record does not show up on CaseNet or in standard background checks.
The Missouri Department of Corrections also maintains records on people under state supervision. The offender search tool lets you look up active offenders, parolees, and people on probation by name. Results include DOC ID, offense, sentence, and release date. This tool does not cover people already discharged from the system.
Some marijuana-related offenses were auto-expunged after Missouri passed Amendment 3 in 2022. The state handled those cases without a petition. For all other eligible offenses, you must file on your own or hire a lawyer. The circuit clerk in Cass County can tell you the filing fee. Legal aid groups in the area may help with the paperwork at no cost.