Hiring a Female Private Investigator for a Cheating Spouse
By David Schassler, licensed New York private investigator. . Updated
A licensed investigator can watch in public places and report what happens, within the law. Pick an agency that lists infidelity work, check the license, ask for a woman on the case if you want one, and get the plan and the rate in writing.
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If you suspect your partner is cheating, the doubt is hard to live with. Some people want facts before they decide what to do. This guide explains how an investigator can help, what the law allows and how to choose.
What an Investigator Can Do
- Follow a person in public places.
- Record where they go and who they meet.
- Take dated photos and video in public.
- Write a clear report with times and places.
The report can help you decide what to do next. If your matter may go to court, ask your attorney what they need.
What an Investigator Cannot Do
A licensed investigator cannot wiretap a phone, hack email, trespass or pretend to be police. Secretly intercepting calls can bring up to 5 years in federal prison (18 U.S.C. 2511). Rules about GPS trackers differ by state. In California a tracker is not allowed unless the car's registered owner, lessor or lessee agrees (Penal Code 637.7). In Florida, consent is presumed withdrawn once a spouse files for divorce (Statutes 934.425). Never put one on a car you do not own without advice. If an investigator offers any of this, walk away.
Why Some Clients Want a Woman
Some clients feel more comfortable talking to a woman about an affair. A woman may also blend in at places where a man stands out. If it matters to you, ask who will work your case. A woman owned agency may still send a male investigator, so be direct.
How to Pick an Agency
- Find agencies that list infidelity work.
- Ask for the license number and check it with the state.
- Ask how many years she has done this kind of work.
- Ask what the report looks like.
- Get the rate, the retainer and the plan in writing.
What It Costs
Most investigators bill by the hour plus mileage and costs, and many ask for a retainer. Surveillance takes time, so costs can add up. The U.S. Bureau of Labor Statistics notes that investigator schedules can include early mornings, nights and weekends (BLS). Ask for an estimate and ask how you can keep the work focused. A clear routine for the person helps. Our guide on what a private investigator costs explains what moves the price.
Before You Hire
Gather what you know. Write down dates, places, work hours and routines. Do not confront your partner or install spyware, because it can hurt your case and may be illegal. Think about what you will do with the answer.
What the Report Should Show
A good report lists dates and times, places and what was seen. It may include photos or video taken in public. It says what happened, not what the investigator thinks it means. Ask for a sample format before you hire. Ask who reviews the report and how long it takes to arrive after each day of work.
If the matter may go to court, tell your lawyer early. They can say what they need, and the investigator can build the report to fit.
Mistakes to Avoid
- Confronting your partner before you have facts.
- Installing spyware or tracking a phone that is not yours.
- Sharing your plan with friends who may talk.
- Paying cash with no agreement.
- Hiring the cheapest quote without asking what is included.
These mistakes can cost you money, your privacy and sometimes your legal position. Take it slowly, and keep it quiet.
What Happens After the Report
The report ends the fact finding. What you do next is your call. Some people talk to a divorce lawyer. Some talk to their partner. Some decide to stay and work on things. An investigator does not make that choice for you. A lawyer can tell you how the facts may matter where you live, and a counselor can help with the rest.
Keep the report private. Store it safely and share it only with people you trust, like your attorney.
Questions to Ask Yourself First
What do I want to know. What will I do with the answer. Am I ready for either result. Do I need a lawyer first. Is my budget realistic. Writing these down before you call makes the first talk with an agency much more useful, and it can save money.
Take Care of Yourself
This is a heavy time. Talk to someone you trust. A lawyer can explain the rules in your state. If you ever feel unsafe, call 911. An investigator can give you facts, and the choices stay yours.
Fast Answers
Is it legal to hire a private investigator for infidelity?
Yes, when the investigator is licensed and follows the law.
Will my spouse know?
A good investigator works quietly. Never confront the person or tip them off.
How long does it take?
It depends on the person and the case. Ask for a plan and a realistic estimate in writing.
Can a private investigator put a GPS tracker on my spouse's car?
Not without the right consent. In California the registered owner, lessor or lessee must agree, and in Florida consent is presumed withdrawn once a divorce is filed. Ask the investigator what consent she requires before any tracker goes on.
Primary Sources
- U.S. Bureau of Labor Statistics, Private Detectives and Investigators
- 18 U.S.C. 2511, interception of communications
- California Penal Code 637.7, electronic tracking devices
- Florida Statutes 934.425, installation or use of tracking devices
All sources were read in October 2026. This is general information, not legal advice.