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Magnum Investigations offers a free 30-minute consultation to discuss your situation with a professional surveillance expert.

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Cheating Spouse

Surveillance specialists trained to remain undetected.

If you hire a private investigator to catch your cheating spouse, you can’t afford for the investigator to get caught. Most other companies are one-man operations and generally get caught.

Child Custody

A 92% success rate with child custody investigations.

The combination of Law Enforcement background, understanding of case law, Specialized Surveillance Skills, compassion and understanding of the emotions that the client is dealing with is a recipe for success that no other company has.


Why pay your ex alimony if she/he is living with a new partner?

Those who invest in a Private Investigator for Alimony usually end up saving tens, and sometimes hundreds of thousands of dollars with an Alimony Reduction or a Revocation as a result of our co-habitation investigations.

Private Investigator in NJ & PA

Why Choose Magnum for your Investigations?

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Clients choose Magnum Investigations as their private investigator because they say that we “just get it”.

We not only understand Domestic Investigations but more importantly, we understand the emotions you are going through and we know how to build a customized strategy that will yield the highest degree of successful results.

We are not actors and don’t try to convince you we are good by advertising various TV shows we have been on; we are not authors and don’t try to convince you how good we are by selling books.

We are a true Investigative Agency in NJ and PA with a reputation for success in handling difficult assignments. Our agency only employs the most elite of investigators who are seasoned, skilled, and quite frankly are the best in the business.

Research it yourself… you will soon learn that we are the only licensed private investigation agency in New Jersey and Pennsylvania that solely specializes in difficult Domestic Investigations including Child Custody Battle Investigations, Cheating Spouse Investigations, and Alimony (Co-habitation) Investigations.

Whether you are a Private Citizen or a Family Law Attorney… Magnum Investigations is Your Information Solution!

Magnum Investigations, owned and operated by Christopher Halscheid, has been around longer than virtually any other investigative agency in NJ and PA. We separate ourselves from our private detective competitors because we dedicate the necessary time to devise a strategy that works but more importantly a strategy that will allow us to provide results without getting caught. We will take precautions and err on the side of caution; we never take an overzealous approach.

With all due respect, if you are “Price-Shopping” for the cheapest rates then we are not the private investigator for you. In fact, we will likely be more expensive than our competitors but in return you will have a higher success rate without the same risk of detection; you are paying for our experience and know-how not to mention our reputation & ability to provide you with sound personal advice along the way that will assist you in making it through this difficult time. You truly get what you pay for; if you are looking for results and want to hire the best private investigator for video/photographic surveillance then you have come to the right place.

Call Now for Free 30-Minute Consultation

Where Do You Conduct Investigations?

Click the image below to see more details on our service area in New Jersey & Pennsylvania:

How Do You Differ From Other Private Investigators?

Magnum Investigations is not your typical one-man private detective operation. Our agency is a video/photographic surveillance specialist with a staff that only works on Domestic Cases including Child Custody Investigations, Cheating/Infidelity Investigations, and Alimony/Co-habitation Investigations covering all counties within New Jersey and Pennsylvania.

Our competitors think that being “Diverse” is the key to success in poor economic times and therefore they will literally handle any type of investigation they can possibly find (i.e. Interviews, Accident Investigations, Employment Background Checks, Cheating, etc.); Magnum, on the other hand, is not a diverse agency; we only specialize in Domestic Investigations (Cheating, Child Custody, and Alimony).

Day in and day out, these are the only types of investigations we handle and for that reason, we have more experience in handling such cases than any other company in the industry. When you can’t afford for your spouse, partner, or ex-spouse to learn that you hired an investigator to follow him/her then you better hire the best surveillance expert in the industry – Magnum – or you will live to regret it.

Most one-man P.I. companies will outsource your work to other investigation companies without your knowledge. Because of the lack of man-power, they can only handle one job at a time and if your job conflicts with their schedule they will subcontract it to another company. At Magnum we handle every single job in-house; we never subcontract any of our jobs.

Virtually every detective company in NJ & PA are one-man operations without any employees and when they attempt to follow someone alone they will most certainly get caught.

Our agency has a small staff and we always utilize teams of investigators when we follow someone drastically minimizing any chance of getting caught. No matter how good an investigator is and how much he tries to convince you that he does it all of the time, common-sense will tell you that if one investigator tries to follow your spouse it will only be a few miles or a couple of hours before your spouse recognizes that same vehicle “tailing” him/her. Magnum utilizes multiple vehicles and investigators at the same time, therefore, it makes it virtually impossible for your spouse to ever know we were there.

How Do I Hire Magnum Investigations?

Click on the links above to learn more about our services! Then you may call Toll-free (800) 688-9230

We DO NOT discuss rates or investigations via email.

The owner of Magnum Investigations will personally speak with you before assigning a professionally trained in-house NJ Private Investigator or PA Private Investigator to handle your investigative needs.

Call Now for Free 30-Minute Consultation


How much does it cost to hire a private investigator in NJ?

For surveillance, the cost depends on several factors such as the success rate of the company you hire, the type of case (cheating vs. alimony), the number of detectives working on the case, and travel expenses. On average, an experienced NJ private investigator charges between $100-$450 per hour. Our company requires a retainer, which we draw from our hourly rate, and our clients must cover charges we incur during the investigation such as mileage, tolls, and other expenses.

What can a NJ private investigator legally do?

Unlike exaggerations in film portrayals, a private investigator is a citizen who must follow local and federal laws. They cannot trespass on private property, access private financial records, or tap phones to record conversations. However, one distinct advantage is a licensed detective can follow an individual on public property without being subject to stalking/harassment laws. A private investigator may also retrieve public domain information, testify as an expert, and present legally admissible evidence in a court case.

Is it worth it to hire a private investigator?

This is a highly personal question that you must consider. In our professional experience, the stress of not knowing the truth and attempting to uncover it on your own weighs heavily on your mind for days, weeks, or even years. Getting undeniable evidence with an expert’s help allows you to come to terms with the truth and move forward with your life. In alimony and child custody cases, video/photographic surveillance is crucial to achieving an outcome that saves you money in the long-term and keeps your son or daughter in the best environment. These are hard to put a price on.

How do you become a private investigator in NJ?

To obtain a license, one needs a minimum of five years of experience as an investigator or a police officer. A degree in criminal justice and/or similar fields is highly recommended/encouraged. An investigator must be fingerprinted and pass a background check and should be insured as well.

Can a private investigator carry a gun in NJ?

Private Investigators are subject to the same laws as private citizens. While one’s first instincts are to picture PIs as depicted via fictional entertainment, the reality is less dramatic and more functional.

Can private investigators take photos?

Investigators can take photos and video. However, the caveat or limitation of said privacy is that those photos/video need to occur in a public setting and therefore not impede on someone’s privacy.

Can private investigators spy on cell phones?

The short answer to the cellphone spying question is that in most cases no. However, in regards to recording audio, it may be possible, depending on the state’s law.

How long does a private investigation take?

Every case is different and for that reason there is no way to pre-determine how long a case will take. With that being said, cheating investigations generally take no more than five attempts. Our experience allows us to be as efficient as possible. Some solutions are simple and can be resolved quickly, while others are more complex. It’s not about the speed of the process; rather, the quality of the results.

Who uses private investigators?

A common characteristic of our clients is individuals in need of, answers, clarity, and peace of mind. People, who are frustrated in their attempt to find the truth, will seek the professional assistance of a private investigator.

Can a private investigator put a tracking device on your car?

Laws have not caught up with technology. There is case law, however, that essentially implies that despite a vehicle being in one party’s name, that all vehicles are considered joint marital property and therefore there is no expectation of privacy.

Can private investigators follow you?

Similar to previous answers, when it comes to following someone, the crucial component is that it occurs in public or quasi-public places and the investigator doesn’t break laws such as trespassing or impede on the individual’s rights.

Read more of our frequently asked questions

IMPORTANT: There are many companies offering Investigative Services who are NOT Licensed Investigators and are therefore operating illegally. Therefore be careful and demand that the company provide you with their License Number and then verify it through New Jersey at (609) 633-9352 or New York at (212) 417-5800; in PA you must contact the Clerk of Courts in the County where the company claims to be located.

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5 Tips When Hiring a Private Investigator

As the owner of a 15+ year old investigation agency, these are my 5 best tips for someone considering video surveillance.

Where can I send this PDF to you?

📞 (800) 688-9230