Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest and crime 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 23, 2026 and October 9, 2026.
Frederick County, Maryland, has about 299,000 residents (2024 Census Bureau estimate). In Maryland the public criminal record is the court file, kept by the Clerk of the Circuit Court; the statewide criminal history kept by the Maryland Department of Public Safety and Correctional Services, Criminal Justice Information System is released only to its subject and to the employers and agencies the law allows. This guide says where each record of a criminal case from Frederick County is kept and how it is seen.
This guide covers the court file, the statewide record, local arrest records, the crimes behind the records, the prosecutor, sex offender registry, records requests and common questions.
Related guides: Frederick County public records, Frederick County arrest records, Frederick County warrants, Frederick County inmate search, Frederick County court records, Maryland arrest records and Maryland inmate search.
Criminal Cases in the Circuit Court for Frederick County
A criminal case from Frederick County is filed in the Circuit Court for Frederick County or the District Court of Maryland, which takes misdemeanors, traffic cases, landlord-tenant cases and civil claims up to $30,000, and the court file, kept by the Clerk of the Circuit Court, is the record of it that the public may see.
The court records page SearchSystems verified for the county is at mdcourts.gov/courtsdirectory/frederick (page title: Frederick County | Maryland Courts), phone 301-600-1976, 100 West Patrick Street Frederick, MD 21701, which answered when SearchSystems opened it on September 23, 2026.
Statewide, Maryland Judiciary Case Search is the free statewide case search of every Maryland court.
The Maryland Criminal History and Your Own Copy
The statewide criminal history kept by the Maryland Department of Public Safety and Correctional Services, Criminal Justice Information System is closed to the public in Maryland: it is released to its subject and to authorized employers and licensing agencies, and a member of the public uses the court's own case index instead.
To see your own record, the route is a fingerprint-based request to the CJIS Central Repository. The state page SearchSystems verified for it is at dpscs.maryland.gov/publicservs/bgchecks.shtml.
Arrest Records Kept Locally in Frederick County
The Frederick County Sheriff's Office and the agencies that report for Frederick, Brunswick and Thurmont keep the arrest records in Frederick County: 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 more agency in Frederick County: the Frederick County State Police (state police); it keeps the records of its own arrests.
The Mount Airy Police Department is listed by the FBI across two counties including Frederick County, so its arrests are not broken out for Frederick County here.
Together, the four agencies in Frederick County with all twelve months of 2025 on file reported 5,255 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 Frederick County arrest records.
The Crimes Behind the Records: Frederick County in 2025
The four agencies in Frederick County with all twelve months of 2025 on file reported 590 violent and 2,765 property crimes to the FBI that year; the same agencies with both 2025 and 2024 complete reported 3,355 crimes in 2025 against 3,186 in 2024. Each reported crime is a report on file with the agency that took it, and each arrest that follows is the start of a criminal record.
The full crime section, agency by agency, is on the Frederick County public records guide.
The State's Attorney for Frederick County
Charges in Frederick County are filed by the State's Attorney, which reviews the arrests of every agency in the county and brings the cases in the Circuit Court for Frederick County or the District Court of Maryland.
The office's page SearchSystems verified is at frederickcountymd.gov/m/directory/department?did=14 (page title: Staff Directory, State's Attorney's Office), phone 301-600-1523, 100 West Patrick Street Frederick, MD 21701, which answered when SearchSystems opened it on September 23, 2026.
The Sex Offender Registry for Frederick County
Registered sex offenders living in Frederick County are listed on the Maryland Sex Offender Registry, run by the Department of Public Safety and Correctional Services at dpscs.maryland.gov. The registry is public and can be searched online.
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 Frederick 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 Maryland Public Information Act a county office must answer a request within 30 days, with a denial due within 10 working days, and it may charge staff time after the first two hours, plus copying. The county records request page SearchSystems verified is at frederickcosheriff.com/reports-pia-crash (page title: Frederick County Sheriff's Office, MD | Public Information Requests).
Frequently Asked Questions
Are criminal records public in Frederick County?
The court files of criminal cases in the Circuit Court for Frederick County are public and can be looked up through the court. The statewide criminal history kept by the Maryland Department of Public Safety and Correctional Services, Criminal Justice Information System is not public; you can get your own. The arrest report itself is released by the agency that made the arrest, under the Maryland Public Information Act.
Can I search Frederick County criminal cases online?
The court records page SearchSystems verified for the county is at mdcourts.gov/courtsdirectory/frederick (page title: Frederick County | Maryland Courts). Statewide, Maryland Judiciary Case Search is the free statewide case search of every Maryland court.
How do I get my own Maryland criminal history?
Through a fingerprint-based request to the CJIS Central Repository.
Who prosecutes crimes in Frederick County?
The State's Attorney, reached at 301-600-1523, which files its cases in the Circuit Court for Frederick County or the District Court of Maryland.
Is this the official Frederick County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.