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.
Lewis and Clark County, Montana, has about 75,000 residents (2024 Census Bureau estimate). In Montana the public criminal record is the court file, kept by the Clerk of District Court; the statewide criminal history kept by the Montana Department of Justice is open to anyone who asks. This guide says where each record of a criminal case from Lewis and Clark 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: Lewis and Clark County public records, Lewis and Clark County arrest records, Lewis and Clark County warrants, Lewis and Clark County inmate search, Lewis and Clark County court records, Montana arrest records and Montana inmate search.
Criminal Cases in the Lewis and Clark County District Court
In Montana the public criminal record is the court file. Criminal cases from Lewis and Clark County are heard by the Lewis and Clark County District Court, which hear felonies, civil cases, divorces, probate and juvenile matters; the Justice Court takes misdemeanors, traffic cases and small claims, and the file of each case is kept by the Clerk of District Court.
The court records page SearchSystems verified for the county is at lccountymt.gov/Government/Clerk-of-District-Court (page title: Clerk of District Court | Lewis & Clark County), phone 406-447-8209, a site that blocks automated checks (HTTP 403), so open it in a browser.
Montana has no single public index of every trial court case; each court's records are looked up through that court.
The Montana Criminal History and Your Own Copy
Montana is one of the states that lets anyone look up another person's statewide criminal history: the CHOPRS service lets anyone search public criminal history online by name, through the Montana Department of Justice. 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 Lewis and Clark County
The Lewis and Clark County Sheriff's Office and the agencies that report for Helena and East Helena keep the arrest records in Lewis and Clark 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.
Together, the three agencies in Lewis and Clark County with all twelve months of 2025 on file reported 1,461 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 Lewis and Clark County arrest records.
The Crimes Behind the Records: Lewis and Clark County in 2025
The three agencies in Lewis and Clark County with all twelve months of 2025 on file reported 295 violent and 1,294 property crimes to the FBI that year; the same agencies with both 2025 and 2024 complete reported 1,589 crimes in 2025 against 1,467 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 Lewis and Clark County public records guide.
The County Attorney for Lewis and Clark County
Charges in Lewis and Clark County are filed by the County Attorney, which reviews the arrests of every agency in the county and brings the cases in the Lewis and Clark County District Court or the Justice Court.
The office's page SearchSystems verified is at lccountymt.gov/Government/County-Attorney (page title: County Attorney | Lewis & Clark County), phone 800-666-6899, a site that blocks automated checks (HTTP 403), so open it in a browser.
The Sex Offender Registry for Lewis and Clark County
Registered sex offenders living in Lewis and Clark County are listed on the Montana Sexual or Violent Offender Registry, run by the Montana Department of Justice at dojmt.gov/sexual-or-violent-offender-registry. Sexual and violent offenders are both 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 Lewis and Clark 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 Montana Public Records Act a county office must answer a request in a timely manner; the statute sets no number of days, and it may charge the actual cost of fulfilling the request.
Frequently Asked Questions
Are criminal records public in Lewis and Clark County?
The court files of criminal cases are public, and so is the statewide criminal history kept by the Montana Department of Justice: the CHOPRS service lets anyone search public criminal history online by name. The arrest report itself is released by the agency that made the arrest, under the Montana Public Records Act.
How do I get my own Montana criminal history?
Through the same name-based search, run on yourself.
Who prosecutes crimes in Lewis and Clark County?
The County Attorney, reached at 800-666-6899, which files its cases in the Lewis and Clark County District Court or the Justice Court.
Is this the official Lewis and Clark 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.