To hire a private investigator in New York, set a clear goal, check the state license, pick someone who does your kind of case and get the plan and fees in writing before any work starts.
- Step one write down your goal and facts
- Must check the NYS Department of State license
- Compare two or three investigators
- Sign a written agreement first
Step One, Write Down Your Goal
Before you call anyone, write down what you want to learn and what you will do with it. Do you need proof for a custody case? An address to serve papers? A background check on a business partner? A clear goal keeps hours down and helps the investigator say honestly whether they can help.
Next, list the facts you already have. Names, a recent photo, addresses, cars, work hours and routines all save time. If a lawyer is involved, ask what kind of evidence they need.
Step Two, Find Investigators Who Do Your Kind of Case
Investigators tend to focus. Some do mostly matrimonial and custody work. Others focus on insurance fraud, corporate due diligence, skip tracing or criminal defense. Start with people whose work matches yours.
You can search the NYI directory by region and specialty. NYI members can also earn specialty certifications in areas like surveillance, background and due diligence, and skip tracing.
Step Three, Check the License
New York requires a private investigator license from the Department of State. Ask for the license number on the first call, then look it up yourself in the state's Licensee Search. It shows active licenses only. Our guide on checking a New York PI license walks through it.
Step Four, Interview Two or Three
- How many years have you done cases like mine?
- Who will actually do the work? The owner, an employee or a subcontractor?
- How will you approach my case, and how many hours do you expect?
- What will the report look like? Ask for a sample with private details removed.
- Have your reports been used in court?
- How often will I get updates?
Watch how they answer. A good investigator asks you questions too, and tells you plainly what they cannot do.
Step Five, Get the Plan and Fees in Writing
The written agreement should list the rate, any daily minimum, the retainer, the costs billed on top, a budget cap and how the report is delivered. It should also say how unused retainer money is handled. Our guide on what a private investigator costs in NYC lists the cost questions to ask. NYI members agree to put fees in writing as part of the code of ethics.
Step Six, Stay in Touch During the Case
Keep your phone handy and share new facts fast. If the subject's plans change, tell the investigator so they do not waste hours. Do not confront the person or try to do your own surveillance. That can tip them off and ruin the work you are paying for.
When the report arrives, read it with your lawyer if you have one. Keep it private and store it safely.
Mistakes First Time Clients Make
- Hiring in a panic. Take a day to write your goal and compare two or three people.
- Hiding facts. The investigator can only plan around what you share.
- Skipping the license check because the website looks professional.
- Paying cash with no agreement. You lose any record of what you paid for.
- Telling friends or family. Word travels, and the subject may change their routine.
Each of these costs money or weakens the result. Avoiding them is free.
When to Walk Away
Walk away if an investigator will not give a license number, guarantees results, wants cash with no agreement or offers phone records, account access or wiretaps. Those offers are not shortcuts. They are crimes that can sink your case. Our guide on what a New York PI can legally do explains why.
Common Questions
How do I pick a good private investigator?
Choose someone licensed in New York who does your kind of case, explains a clear plan and puts fees in writing. Ask for a sample report.
Is it legal to hire a private investigator in New York?
Yes. It is legal to hire a licensed investigator for lawful work. The investigator must follow the law in how they gather facts.
Do I need a lawyer before I hire a private investigator?
Not always. If the facts are for a divorce, custody or court case, talking to your lawyer first helps the investigator collect what the court needs.
How long does a private investigation take?
It depends on the case. A records search may take days. Surveillance may run over several weeks. Ask for a timeline in the agreement.
This guide is general information, not legal advice. Laws and fees change, so confirm current rules with the NYS Department of State or a New York lawyer.