New Jersey Private Investigator

Magnum Investigations offers a free 30-minute consultation to discuss your situation with a professional surveillance detective licensed in NJ & PA.

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A photo of a cheating spouse captured by Magnum Investigations private investigator serving NJ and PA.

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 laying on couch

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.

Private detective conducting surveillance in his car


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.

Magnum Investigations, LLC

Watch the video below to learn more about our private detective agency.

Private investigator performing surveillance in a car

Where Do You Conduct Investigations?

Click the images below to see more details on our service in each state:

Our private investigators have likely conducted surveillance near you since we are licensed in New Jersey and Pennsylvania.

We also travel if that presents the best opportunity to uncover the truth and provide the evidence you need.

Please view our gallery of surveillance photos below for a glimpse into our day-to-day operations and the results you can expect after you retain our services.

How Do I Hire a Private Investigation Company?

Use the navigation menu to learn more about our specific detective services.

Then, you may call our toll-free phone number to speak with an investigator licensed in New Jersey & Pennsylvania.

We DO NOT discuss rates or investigations via email.

The owner of Magnum Investigations will personally speak with you during the initial consultation before assigning a professionally trained in-house private investigator to handle your case needs.

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. In PA you must contact the Clerk of Courts in the County where the company claims to be located.

Call Now for Free 30-Minute Consultation

Private Detective Surveillance Case Study

Download our e-book “Surveillance Case Study: Southern Rendezvous” below:

I am writing this review to express my sincere gratitude to Chris for all that he did for me during one of the most stressful and painful times in my life.

His professionalism and guidance, at a time when I questioned myself, helped me to accept my ex-husband’s affair and then begin to move on with my life.

Because of Chris’ diligent surveillance, I have no doubt about the decisions I made afterwards. He provided me with irrefutable proof that strengthened my resolve. He even called to check in on me periodically afterwards.

At a time when I felt like my whole world was tumbling down around me, his concern was truly appreciated.

I highly recommend his services and while I hope never to need him again, I will be sure to call him if need be.

Thanks so much, Chris!

Michelle B.

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5 Tips Hiring Private Investigator Cover

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?

Call — (800) 688-9230 *