WELCOME TO INTERPROBE

Experienced private investigators and researchers with a reputation for solving cases using a powerful mix of technology and conventional investigative techniques in a very confidential manner.

We investigate a wide range of personal and business matters with our core specialties being surveillance, background investigations, and missing persons cases. In business matters, we measure loss in billions of dollars. In our personal lives, the losses are calculated in terms that cannot be quantified by any dollar amount. The intelligence produced through our work can reduce risks and ease losses.

We have been delivering the answers to investigative challenges for over thirty years.

After more than 50 years of heading one of the first and most recognized P.I. Firms in the Washington, D.C. Metro area, without reservation I can say that INTERPROBE was our first choice for contract surveillance and technical investigative services…

Nicholas R. Beltrante (Ret. MPD Detective)
BELTRANTE & ASSOCIATES
Council of International Investigators (past President)
Private Investigators Association of Virginia (Founder & 1st President)
703-360-4848
Keith Nightingale

INTERPROBE is a stealthy surveillance team with great support personnel. They have delivered excellent surveillance service on sensitive domestic and international matters on numerous occasions.

Keith Nightingale, COL (US Army, Ret.)
Special Operations Command
SR. VP. Intl. Business – Risk Management
SAIC SCIENCE APPLICATIONS INTERNATIONAL CORP.

I consider INTERPROBE my east coast ‘office.’ They have been an asset for surveillance and technical countermeasures for our firm for more than 15 years. Their support on cross-national cases and assignments unique to the Washington, DC area is highly valued.

Thomas R. Maslin
President
AMERICAN INVESTIGATIVE BUREAU – GLOBAL
San Diego, California
714-832-9850

…Ultimately, all of our cases requiring surveillance or a technical touch were referred to them. We depended on their capabilities and appreciated their reliability and fairness for more than 20 years.

Nicholas R. Beltrante (Ret. MPD Detective)
BELTRANTE & ASSOCIATES
Council of International Investigators (past President)
Private Investigators Association of Virginia (Founder & 1st President)
703-360-4848
No Name

My go-to investigators for more than 15 years; prior to receiving my judgeship.

(appointment requires name withheld)
JUDGE – ARLINGTON
COUNTY CIRCUIT COURT
Arlington, VA

Extremely pleased with the results of INTERPROBE’s work for years.

Richard Wexell, Esq.
ATTORNEY AT LAW
Fairfax, VA
703-385-3858
John R Powell

They made a case against my client and I decided I better get them on my side for the future. I have used them ever since.

John R. Powell, P.C.
ATTORNEY
Gabeler, Battocchi & Powell, P.C.
McLean, Virginia 22101
703-790-5244
Carl P Horton

Great results by these investigators. They are accurate, ethical, and very persuasive in court.

Carl P. Horton
ATTORNEY
Oakton, VA
703-938-5708

FEATURED FACT SHEET

10 Ways to Catch a Liar

J.J. Newberry was a trained federal agent, skilled in the art of deception detection. So when a witness to a shooting sat in front of him and tried to tell him that when she heard gunshots she didn't look, she just ran -- he knew she was lying.

INSIGHTS OF INVESTIGATIVE TECHNIQUES

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