#1 Detective Agency | Lie Detector Test

TVSI was founded in May 1966 as the first company to provide Lie Detector Test services in the Philippines. It was a business partnership between CWO Chandler F. Williams, Capt. Conrado G. Dumlao and Dr. Alcyone Thor Reyes. In 1973, the company was incorporated, and in 1985 it opened its US office.

Now it continues to service the government and the private sector as well as individuals, local and foreign in detective and investigative expertise in:

• Lie Detector Test
• Surveillance/Undercover
• Forgery Detection
• Hotline Tip System
• Process Serving
• Background Investigation

• Records Verification
• Fingerprint Analysis
• Lifestyle Check
• Locating Person / Property
• Fraud Investigation
• Seminars/Products

TVSI is located at 2/F Cityland Bldg., Pioneer St., Mandaluyong City. It also has a new branch located at Don Francisco Tan Gana Bldg., National Highway, Balibago, Sta. Rosa City, Laguna, CALABARZON.

For your inquiries, you may call 634-7571, 634-7573, or its 24/7 Hotline 843-4343 loc. 5678. You may also send en email to truth@mozcom.com or visit www.truthverifier.com and www.liedetectorphilippines.com.

NBI Has Now The Most Advanced Lie Detector

By: Melvin R. Royo

National Bureau of Investigation (NBI) received the LX5000 Polygraph Instrument, the most advanced computerized polygraph system by Lafayette Instruments USA, from Truth Verifier Systems, Inc. (TVSI) on June 5, 2012 at its Head Office in Taft Ave., Manila.  

NBI Chief Polygraph Division Lolito L. Basilio was the one who received the instrument from TVSI Consultant Dr. Crisanto M. Nulud and TVSI Asst. Chief Polygraphist Miguel Panchito P. Dela Paz. Mr. Dela Paz also conducted a one-week training to the lie detector examiners of NBI for them to have an idea on how to operate the instrument.

Prior to the delivery as shown on the inset photo, TVSI polygraph consultant/specialist Maj. Gen. Essam Aly Gamal El-Din (ret.) introduced the system to NBI Chief Polygraph Division Lolito L. Basilio for him to get familiarized with the instrument. With them also during that time was TVSI President Conrado G. Dumlao, NBI Deputy Director for Technical Services Atty. Reynaldo O. Esmeralda, NBI Sr. Polygraph Examiner Benedicto Pinzon, and TVSI Operations Manager Raul V. Domingo.

Meanwhile, Truth Verifier Systems, Inc., the country’s Number 1 Lie Detector Company, is an authorized distributor of Lafayette Instruments, USA. TVSI is awarded by Philippine National Police (PNP) as the Hall of Fame Best Private Detective Agency and ISO Certified Company. It is located at Unit 254 Cityland Bldg., 128 Pioneer St., Mandaluyong City, with telephone numbers 634-7571 and 634-7573 and e-mail truth@mozcom.com

NOW OPEN: TVSI CALABARZON BRANCH

 

Because we are eager to serve you better, our CALABARZON Branch is now open!  

Download location map by clicking here.