Investigation Services
Matrimonial Investigations in New York City
Discreet infidelity investigation in New York City when you suspect a spouse or partner is unfaithful, with evidence a court will accept.
Matrimonial investigations in New York City from New York Intelligence Agency give you proof of infidelity that holds up in court, gathered quietly by a licensed agency with 40 years in the work.
At a glance
- Court ready reports your divorce attorney can use
- Investigators who can testify if your case goes to trial
- A private first talk by phone, by text or at our Fifth Avenue office
- Photos, video and GPS tracking where the law allows
When trust breaks down in a marriage, you need the truth. You cannot plan your next move without it. Our team has spent more than 40 years proving infidelity in New York. We work for divorce attorneys, for family law cases, and for people just like you. We do it quietly, and we gather proof that holds up in court.
When to call a matrimonial investigator
Most people call us after months of worry. The late nights. The odd charges. A partner who pulls away. A phone that is suddenly locked. By the time you call, you often already feel it. What you need is proof. Proof to face the truth, protect your money in a divorce, or simply close this chapter and move on.
How we work
Every case starts with a private talk. You can reach us by phone, by text, or in person at our Fifth Avenue office. We listen. We ask the right questions to learn what is realistic. Then we give you an honest read before you spend a dime. If the case makes sense, we build a plan. That plan covers timing, locations, vehicle teams, photos and video, GPS tracking where the law allows, and any digital work the case needs.
Evidence that holds up in matrimonial court
New York splits property in a fair way, not always an equal one. So what you can prove about a spouse can change the outcome of a divorce. We write our reports for your attorney to use. We document the chain of custody. We match surveillance logs to photo timestamps. And our investigators can testify if your case goes to trial. We work with many of New York City’s top divorce firms, and our work is built to hold up.
Discretion is the entire job
If a subject realizes they're being followed, the investigation is over. That's why we use experienced field investigators, rotate vehicles, and operate at the level of patience this work demands. No subject we've worked has ever been spooked by our team. That's the standard.
Official sources you can check yourself
We would rather you check this than take our word for it. These are the primary sources behind the guidance on this page.
- Domestic Relations Law 236 Part B. The equitable distribution statute that decides how a New York court divides marital property.
- Penal Law 250.05, Eavesdropping. Wiretapping and intercepting communications is a class E felony in New York. This is the line no licensed investigator crosses.
- New York Department of State license search. Look up any New York investigator by name or license number. Ours is #11000169770.
Just for Fun
The Unofficial Cheating Detector
Eight quick questions, zero judgment. It proves absolutely nothing on its own. Only a real investigation does that. But it might tell you whether your gut is onto something. Answer honestly.
Question 1 of 8
Got it. We will be in touch.
Somebody reads this personally. If it is urgent, call (646) 461-4650 any hour.
Free, Confidential Consultation
Infidelity & Cheating case in New York?
Infidelity & Cheating case in New York?
Call David directly.
Matrimonial & Infidelity
How our matrimonial investigations help
- ✓Document a partner’s movements with time stamped photos and video
- ✓Confirm or rule out an affair so you can stop guessing
- ✓Act as a discreet private detective for cheating concerns, never making contact
- ✓Gather evidence that holds up with a family law attorney
- ✓Offer last minute surveillance when you need answers fast
- ✓Hire a licensed private investigator in New York City
Cost & What You Get
What matrimonial surveillance costs in New York
Matrimonial work is almost entirely surveillance driven, so it is billed by the hour rather than as a single flat fee. Usually with a minimum block of hours per outing, because a real surveillance operation cannot be done in fifteen minutes.
The main things that move the fee:
- how many hours of surveillance the situation realistically needs
- whether one investigator is enough or the movement calls for a two- or three person team
- time of day, distance, and whether the subject crosses boroughs or heads to the suburbs
- whether you need video, a written report, or an investigator who can testify
- how fast you need us on it
Matrimonial surveillance is $240 an hour with one investigator and $280 with two, with a five hour daily minimum and a $100 daily vehicle charge. That is $1,300 or $1,500 for a standard day, and a multi day operation with a full evidence package scales from there. A marital records search is a flat $600. Every case is quoted individually. The initial consultation with David is free and confidential, and you’ll get a written estimate before any work begins, with no obligation.
What you receive
- a timestamped written report of what we observed
- date stamped photo and video evidence
- a plain English summary you can actually use
- secure digital delivery of the file
- an investigator who can testify to the chain of custody if the case reaches court
Frequently Asked Questions
Matrimonial Investigations. Your questions answered
Straight answers to what clients ask most. If yours isn't here, call David directly for a free, confidential consultation.
Is it legal to investigate a cheating spouse in New York?
Yes. A licensed New York private investigator can follow a spouse in public. We can document where they go and who they meet. We can photograph anything done in plain view. What we cannot do is enter a home without permission. We cannot put a tracker on a car we have no right to touch. And we cannot record private talks we are not part of. Everything we collect follows state and federal law, so it holds up if you ever need it.
Can the evidence be used in a New York divorce case?
New York is a no fault divorce state, so you do not need to prove cheating to get divorced. But surveillance evidence still matters in contested matters. It can affect spousal support where marital funds were spent on an affair, support a cohabitation claim that ends alimony, or inform custody when a partner's conduct is relevant. We document everything in a clear, dated report your attorney can use.
How long does a matrimonial surveillance case take?
It depends on the subject's routine. Many cases produce meaningful results within one to three surveillance days, often timed around a specific evening or trip. We talk through the pattern you have noticed first, then schedule surveillance for the windows most likely to be productive rather than billing open ended hours.
Will my spouse find out I hired an investigator?
No. Discretion is the core of the work. Our investigators are trained in covert mobile and foot surveillance, use unmarked vehicles, and never make contact with the subject. Your consultation and your case are strictly confidential. Your name never appears in anything that leaves the office.
What should I do before I call?
Write down the days, times, and places where you have noticed unusual behavior, and avoid confronting your spouse, which only makes them more careful. Bring that timeline to a free consultation and we will tell you honestly whether surveillance is likely to answer your question and what it would involve.
How much does a matrimonial private investigator cost in New York?
Matrimonial surveillance in New York is billed hourly with a five hour daily minimum. One investigator is $240 an hour and two are $280, plus $100 a day for the vehicle, so a standard day is $1,300 or $1,500. A marital records search is a flat $600, and a background check is $400 or free when you book surveillance. The consultation is free and you get a written estimate before any work begins.
Related Services
Investigations that often go together
New to working with an investigator? See how we work, our confidentiality standards, or why a licensed PI matters.
From the field: How a private eye uncovers infidelity · Cohabitation surveillance in alimony disputes · What a PI can legally do in custody cases · What to do if you suspect your spouse is cheating · Hiring a private detective for your divorce case.
Working in New York City
The city we operate in. Today’s conditions and who lives here
New York City · Live
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New York Intelligence Agency works across all five boroughs and the surrounding metro. Understanding the population we serve. Its scale, density, and makeup. Informs how we plan surveillance, locate people, and build cases in the city.
8.5M
Residents across the five boroughs
3.2M
Households citywide
$76,600
Median household income
38
Median age (years)
41%
Hold a bachelor’s degree or higher
68%
Live in renter occupied homes
Source: U.S. Census Bureau, American Community Survey (New York City).