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Meet Dave O. and His Team!

Hello, and congratulations for making the tough decision to hire a Private Investigator. My name is Dave O.  I am the Owner, Founder, and the Principle Investigator at Blackstone Investigations Group, also known as “B.I.G.” for short.  Our office is located in Mount Laurel, New Jersey. We are a licensed and insured full service private investigations firm covering the entire State of New Jersey. I am a proud Marine Corps Veteran, and am happy to offer a discount to all veterans who need assistance. My expert team of seasoned Investigators has conducted a wide variety of investigations for private citizens, high profile law firms and corporations, insurance companies and professional athletes. We are considered experts at covert undercover surveillance and use the latest most advanced video equipment available on the market. And of course, confidentiality and discretion is of the utmost importance on all cases!

When it comes to great service and professionalism, Blackstone has you covered there too! B.I.G. offers private client services, and takes on many different types of cases, including cheating spouses/infidelity (best seller), cohabitation/alimony modification, child support/child custody, elder abuse, computer forensics, social media investigations and teen troubles.  I also have a staff member dedicated to handle cases involving trusts, wills and estates.  Corporate clients, such as law firms and insurance companies, are also very big part of our business. For those clients we assist with personal injury, workers comp fraud, interviewing witnesses, insurance fraud, employee theft, asset recovery and executive protection/security details for CEO’s, their families and corporate executives.

Prior to starting Blackstone Investigations Group, I proudly served in the United States Marine Corps as a Military Police Officer, and after receiving an Honorable Discharge, spent the next 15 years dedicated to serving the public as a Police Officer and Police Detective. Throughout my career I have worked with private citizens, businesses, local and state governments, as well as various federal government agencies including the FBI, DEA, and Homeland Security. I also worked hard at sharpening my investigative skills by completing many investigations training courses. While serving as a Police officer, I received over 35 Letters of Commendation from private citizens and various Law Enforcement agencies, highlighting my work ethic, professionalism and dedication to the community I served. I currently hold a National Certificate through Wicklander-Zulawski to conduct Interviews and Interrogations, of which I have conducted many, and I am also an NRA Certified Pistol Instructor.

In order to ensure we follow the State of New Jersey guidelines and are current on the latest news across the state, I remain an active member of the New Jersey Licensed Private Investigators Association (NJLPIA), an organization committed to connecting New Jersey residents with qualified and experienced licensed private investigators.

Here’s the bottom line… hiring a PI is no easy task; and hopefully it’s something you only need to do one time. That’s why it so important to hire the right firm right from the start! Here at Blackstone, we truly care about each individual case, and I personally oversee and am actively involved with every case we take on.  CALL ME NOW, so we can discuss your unique situation and figure out a potential  course of action. Or, you can complete and submit the client information form via email by clicking the red “Free Consultation” tab in the top right corner. Once your information is received, I will quickly make contact with you via your preferred method of contact so we can discuss your case. I will explain the process and what the next steps are so we can put your mind at ease and focus on the task at hand! Thanks for your time, I hope you enjoy my website.

I look forward to speaking with you soon,


Dave O.

*EXPERIENCED                *TENACIOUS                *PROFESSIONAL

  • Marine Corps Veteran