Hiring a private detective
Private Detective vs. Police: What's the Difference?
Police investigate crimes on behalf of the public. Private detectives gather facts for a client. Knowing the difference helps you choose the right one, or use both.
Key points
- Call police for crimes and emergencies
- detectives work for you and on your timeline
- detectives have no arrest or search powers
Different roles
Police enforce criminal law and prioritize cases by public safety and resources. Many civil matters, such as infidelity, custody, asset location or civil fraud, aren't police business at all.
Different powers
Police can obtain warrants, subpoenas and records unavailable to private detectives, and they can arrest. Private detectives work through public records, lawful observation, interviews and the legal process available through your attorney.
When to call police
Call 911 for emergencies or immediate threats. Report crimes such as fraud, theft, stalking or threats to law enforcement. A private detective can help organize evidence to support that report.
When a private detective helps
When you need facts for a civil matter, when police have closed or deprioritized a case, or when you need focused attention on your timeline. Defense attorneys also use detectives to test the prosecution's case.
Common questions
Can a detective investigate a crime?
Yes, gathering facts lawfully. Prosecution decisions remain with authorities.
Will police use a detective's evidence?
Well-documented evidence can support a report. Police decide how to proceed.
Can a detective pretend to be a police officer?
No. Impersonating law enforcement is illegal.
This guide is general information, not legal advice. Laws change and vary by state; consult an attorney about your situation. See our legal disclaimer.
Related services
Services connected to this guide.
Criminal Defense Investigations
Independent investigation for defense counsel and their clients.
Online & Personal SafetyStalking Investigations
Identifying and documenting who is following or monitoring you.
Legal & Litigation SupportEvidence Development
Locating, preserving and organizing facts that support a claim or defense.
Keep reading
Related guides.
What Does a Private Detective Do?
What private detectives actually do: surveillance, records research, locates, interviews and reports, plus the legal limits on their work.
Laws and limitsWhat Private Detectives Can and Cannot Do Legally
The legal limits on private detectives: surveillance, records, recording, GPS, pretexting, trespass, hacking and impersonation, explained plainly.
Personal and family mattersWhat to Do If You're Being Stalked
Steps to take if you're being stalked: safety first, documenting incidents, reporting to police, protective orders, and how detectives help.
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