Hiring a private detective

Red Flags When Hiring a Private Detective

Most detectives are professional. A few are not, and the wrong one can expose you to legal risk. These are the warning signs.

Updated November 2026

Key points

  • Promises of guaranteed results
  • Offers to get phone, bank or private account data
  • No verifiable license or written agreement

Guarantees

Investigations uncover facts; they can't guarantee what those facts will be. Promises like "we'll catch them" or "we'll definitely find the money" are sales tactics.

Illegal methods offered as services

Offers to obtain phone records, bank statements, passwords or private messages, to put a tracker on someone else's car, or to "get into" an account are serious red flags. These methods can be crimes, and evidence obtained that way can be excluded and expose you to liability. See what detectives can legally do.

Licensing problems

No license where one is required, a license that can't be verified, or reluctance to share license details.

Vague pricing and pressure

No written estimate, unclear expenses, large non-refundable payments with no defined scope, or pressure to decide immediately.

Poor confidentiality

Discussing other clients' cases in detail, or casual handling of your information, suggests yours won't be protected either.

Common questions

What if a detective offers to get phone records?

Decline. Obtaining phone records by pretexting is illegal under federal law.

Is a large retainer a red flag?

Not necessarily. Retainers are common. The red flag is a retainer without defined scope or accounting.

What if I already hired someone questionable?

Stop the work, ask for an accounting and talk to an attorney about any evidence already gathered.

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

Confidential inquiry

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