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Guides

Guides to private investigation in Oklahoma

Plain guides to what an investigation costs, what Oklahoma law allows and what to do first, each on a page of its own.

Updated October 12, 2026

We wrote these guides for the questions that come up before a first call. Each takes one question and answers it plainly, and where the answer rests on a statute or a published figure, the guide links it. None of them is legal advice: for advice about your own situation, talk to an Oklahoma attorney.

The guides

What a private investigator costs in Oklahoma
The hourly rates and retainers that published sources report, what moves the cost of each kind of work, and what to ask before you compare quotes.
What a private investigator can do in Oklahoma
What Oklahoma and federal law let a licensed private investigator do, and where they draw the line, with each point linked to the official text.
Process serving rules in Oklahoma
Who may serve court papers in Oklahoma, what the court-issued license covers, how service is made and proved, and what happens when someone cannot be found.
If you suspect infidelity
What to do first when you suspect a spouse or partner may be unfaithful: what to leave alone, what to write down and when a private investigator can help.
Finding a missing person in Oklahoma
The police report that comes first, what an Oklahoma agency must do with it, what a family can gather and do, and where a private investigator fits.

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