Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. Every office link was opened and checked against the office's own site between September 24, 2026 and October 2, 2026.
Derby, Kansas, in Sedgwick County, has about 27,000 residents (2024 Census Bureau estimate). In Kansas the public criminal record is the court file, kept by the Clerk of the District Court; the statewide criminal history kept by the Kansas Bureau of Investigation is open to anyone who asks. This guide says where each record of a criminal case from Derby is kept and how it is seen.
This guide covers the court file, the statewide record, local arrest records, the prosecutor, sex offender registry, records requests and common questions.
Related guides: Derby public records, Sedgwick County criminal records, Derby arrest records, Derby warrants, Derby inmate search, Derby court records, Kansas arrest records and Kansas inmate search.
Criminal Cases in the Sedgwick County District Court
In Kansas the public criminal record is the court file. Criminal cases from Derby are heard by the Sedgwick County District Court, which hears every civil, criminal, family, probate and juvenile case, and the file of each case is kept by the Clerk of the District Court.
For Sedgwick County, SearchSystems opened and checked the court records page for the county at casesearch.kscourts.gov (page title: Search | Kansas Case Search), a site that blocks automated checks (HTTP 403), so open it in a browser.
Statewide, Kansas District Court Public Access Portal is the Kansas courts' statewide case search.
The Kansas Criminal History and Your Own Copy
Kansas is one of the states that lets anyone look up another person's statewide criminal history: anyone can order a name-based criminal history record check online, through the Kansas Bureau of Investigation. The result is the repository record, what agencies reported to the state, which is wider than one county's court index but can lag it.
Arrest Records Kept Locally in Derby
The Sedgwick County Sheriff's Office and the agency that reports for Derby (filed by the FBI as Derby Police Department) keep the arrest records in and around Derby: the report and the booking record of each arrest stay with the agency that made it, separate from the court file and from the state repository.
The FBI's agency list also places one campus police department, two other agencies and one state agency in Sedgwick County (the arrest records guide names each one); each keeps the records of its own arrests.
The Sedgwick Police Department is listed by the FBI across two counties including Sedgwick County, so its arrests are not broken out for Sedgwick County here.
Together, the 11 agencies in Sedgwick County with all twelve months of 2025 on file reported 13,594 arrests to the FBI that year; how each case ended is in the court file, not in the arresting agency's.
The agencies and their counts, year by year, are in Derby arrest records.
The County Attorney for Sedgwick County
Charges in Sedgwick County are filed by the County Attorney, which reviews the arrests of every agency in the county and brings the cases in the Sedgwick County District Court.
The office's page SearchSystems verified is at sedgwickcounty.org/district-attorney (page title: District Attorney | Sedgwick County, Kansas), which answered when SearchSystems opened it on September 24, 2026.
The Sex Offender Registry for Derby
Registered sex offenders living in Derby are listed on the Kansas Offender Registry, run by the Kansas Bureau of Investigation at kansas.gov/kbi/ro.shtml. Sex, violent and drug offenders are all listed.
Registration itself is done in person with the local agency where the registrant lives: the sheriff's office, or the city police in a city with its own department.
Asking an Agency in Sedgwick County for a Record
An arrest report, a booking record or a local criminal history letter comes from the agency that holds it, not from the court.
Under the Kansas Open Records Act a county office must answer a request within 3 business days, and it may charge staff time and copying. The county records request page SearchSystems verified is at sedgwickcounty.org/fire/forms/records-request (page title: Records Request | Sedgwick County, Kansas).
Frequently Asked Questions
Are criminal records public in Derby?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Kansas Bureau of Investigation: anyone can order a name-based criminal history record check online. The arrest report itself is released by the agency that made the arrest, under the Kansas Open Records Act.
Can I search Derby criminal cases online?
Kansas District Court Public Access Portal is the Kansas courts' statewide case search.
How do I get my own Kansas criminal history?
Through the same record check, run on yourself.
Who prosecutes crimes in Derby?
The County Attorney, which files its cases in the Sedgwick County District Court.
Is this the official Derby website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official city, county, court and state offices described above and does not hold records, charge for them or take requests.