Montana hiring guide

How to Hire a Private Detective in Montana

What Montana residents, attorneys and businesses should know before hiring a detective: licensing, the law, cost and the questions worth asking.

Updated November 2026

Montana licensing at a glance

RegulatorMontana Board of Private Security
LicensingStatewide license
Recording conversationsDepends on circumstances
Counties56 counties

Montana licenses private detectives through the Board of Private Security in the Department of Labor & Industry.

Step by step: hiring in Montana

  1. Define your question. What do you need to know, and what decision depends on it?
  2. Verify licensing. Look the detective up on the Montana Board of Private Security website rather than relying on a license number shown in an ad. Confirm the license is active and check the agency license as well as the individual's where both exist.
  3. Agree on scope and cost in writing. Know what will be done, for how long, and what you'll receive.
  4. Share what you know. Names, addresses, photos, vehicles and schedules save billable hours.
  5. Insist on lawful methods. Montana prohibits recording with a hidden device without the knowledge of all parties, subject to exceptions. Detectives shouldn't hack accounts, pretext for records, trespass or track phones.

What affects the cost of an investigation in Montana

Montana spans 56 counties. Surveillance in a dense area like Billings may call for two detectives to keep a subject in view, while work in rural counties can involve more travel time. Records research that requires courthouse visits in several counties takes longer than searches available online.

Most surveillance is billed hourly plus expenses such as mileage; defined research tasks are often flat-fee. Our cost guide explains pricing in detail.

Questions to ask a Montana detective

  • Are you licensed for work in Montana, and who will actually do the work?
  • How often do you handle matters like mine in Montana?
  • How do you handle recording and tracking under Montana law?
  • Which county courts or records will you need, and how long will that take?
  • What will the report include, and could you testify if needed?

More questions are in our list of 15 questions to ask before hiring.

Where we coordinate work in Montana

Mooney & Boland coordinates investigations throughout Montana, including Billings, Missoula, Great Falls, Bozeman and Helena. See private detective services in Montana for coverage and services.

Local pages for Montana communities:

Common questions

Who licenses private detectives in Montana?

Montana licenses private detectives through the Board of Private Security in the Department of Labor & Industry.

Official regulator: Montana Board of Private Security. Use the regulator's license lookup to confirm that any detective or agency is active and in good standing.

Is Montana a one-party consent state?

Montana prohibits recording with a hidden device without the knowledge of all parties, subject to exceptions. This is general information, not legal advice.

Can a Montana detective work in other states?

Licenses generally apply in the issuing state. Work in another state must be handled according to that state's rules. See hiring in another state.

Sources

Reviewed November 2026.

This guide is general information, not legal advice. Laws change and vary by state; consult an attorney about your situation. See our legal disclaimer.

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