Wednesday, December 17, 2014

TVSI Upgrades Lie Detector Instruments With Sensitivity Pads

 Sensitivity pads can be placed under the arms, seat, and feet. Photo courtesy of Lafayette Instrument.

Truth Verifier Systems, Inc. (TVSI) has upgraded its machines. Apart from being computerized, they now have sensitivity pads which make polygraph testing more accurate and therefore, more reliable.

Through these sensitivity pads, not only gross movements and reactions of the subjects could be detected but also those that are very subtle. This means that even those actions which may not be seen by the lie detector examiner during the observation could be monitored and even recorded. These sensors can be placed under the arms and feet.

TVSI has been known for having the most modern lie detector machine in the country. It uses computerized lie detector machines making it possible for the result to be up on the next business day and thus making it easier to detect who is lying.

The company is regularly featured on “Don’t lie to me” segment of “Showbiz Central” on GMA 7.

Through these upgrades, catching liars, cheaters, and thieves could be done with less ease and in no time preventing further losses to occur.

Tuesday, September 2, 2014

Posthumous Award for Dr. Conrado G. Dumlao

Posthumous Award for Dr. Conrado Guerrero Dumlao for being one of the founders of the Philippine Society for Industrial Security (PSIS) and for his great contribution in the Security Industry. 

The grandchildren, Tommy Dumlao Nulud, Louise Claire & Josel Dumlao represented the Dumlao family. Also in the photo are the PSIS President Grace Martinez, Chairman Emeritus Eduardo Fulgencio and the Board of Directors.

Monday, September 1, 2014

Private Detective Courses, Seminars and Tranings

Private Detective Courses, Seminars and Trainings

Truth Verifier Citizen Welfare & Security Training Academy, Inc. (TVCWSTAI), formerly Citizen Truth Verifier Academy, Inc. (CTVAI), will be conducting a Private Detective Pre-Licensing Course this September 2014. This 10-day course will be conducted every Saturday starting September 13, 2014 to November 15, 2014. This exceptional course is accredited by the Philippine National Police (PNP) and the Technical Education and Skills Development Authority (TESDA).

This course is open to all four-year course college graduates who are physically and mentally fit and have the passion enthusiasm to do investigative and detective works. At the end of this course, the participants will be able to acquire basic and advanced knowledge in the field of investigation and detection. It will also hone their investigative skills that are very essential in a job of a private eye.

This course is composed of 18 interesting topics that will be presented by a faculty of professional lecturers in their field of expertise. This also includes a practical and laboratory exercises at the end of the training. 

Meanwhile, Truth Verifier Citizen Welfare & Security Training Academy, Inc. (TVCWSTAI), is a subsidiary of Truth Verifier Systems, Inc. (TVSI), the Philippines’ first Private Detective Company and awarded by the Philippine National Police as Hall of Fame Best Private Detective Agency. TVSI is an ISO 9001:2008 Certified company. It has been recognized as a true home of skilled and professional Private Detectives and Investigators.

TVCWSTAI also offers convenient class schedules to its enrollees on their preferred topics. It also offers in-house seminars on investigation and detection.  

For inquiries, please call (02) 635-5929, 635-5985 or email at You can also visit our websites and



The incidents about “inside job” have been very rampant nowadays. These incidents do not only happen to some business enterprises and multinational companies, but also in the households. These occur maybe because many employers have been very complacent in hiring people. Many of the employers also choose employees from the manpower agencies. However, they still have no assurance that the workers they are hiring are highly competent and trustworthy.   

TruthVerifier Systems, Inc. is proud to introduce a systematic and modern method of screening the applicants. The company provides Pre-Employment Background Investigation and Lie Detector Test. These techniques have been proven to be very effective in hiring and screening the best people. This will allow the employers determine the applicants’ vices that might affect their work; find out their undetected criminal activities; and detect any malicious intension against the employers. This has been widely used by CIA, FBI, Secret Service and best-managed companies in decision-making.

By using these techniques, you will feel safe and secure because you have certainly hired the right and honest people.

Meanwhile, Truth Verifier Systems, Inc. (TVSI) is known to be the No. 1 Private Detective and Lie Detector Company in the Philippines. It was awarded by the Philippine National Police (PNP) as the “Hall of Fame Best Private Detective Agency”. It is an ISO 9001:2008 Certified Company. It specializes in lie detection, investigation and detective services. It is noted for its exemplary service, expertise, integrity and truthful reporting.

TVSI’s main office is located at the 2/F Cityland Bldg., 128 Pioneer St., Mandaluyong City. It has a branch office at the 2/F, Don Francisco M. Tan Gana Bldg., National Highway, Balibago, Sta. Rosa, Laguna.

For inquiries, please call us at (02) 634-7571 and (02) 634-7573 or you may e-mail us at and For more details, you may visit our websites at, and

Melvin Royo

Conrado G. Dumlao. His Legacy Lives On.

Nov. 10, 1933 – Feb. 3, 2014
The Captain of Professional Detectives
His legacy lives on
By: Melvin R. Royo
Conrado G. Dumlao, also known by most of his friends and colleagues as “Rading or Conrad”, had made a successful business of other people’s need for security and information.  He had skillfully converted his five-year training and experience in the military intelligence into a commercial intelligence. He had been in the private detective and investigative business for 48 years, 20 years of which were in the U.S.

His advocacy to eradicate fraud and dishonesty in the workplace as well as his passion for networking inspired him to join in numerous organizations in the US. Hence, he was named as the “First Filipino” to become a member of the following associations in the US:

Ø  World Association of Detectives (WAD)
Ø  American Polygraph Association (APA)
Ø  Association of Certified Fraud Examiners-International (ACFE)
Ø  American Society for Industrial Security (ASIS)

He became very active in the security and detective industry. He also devoted time in sharing his intellectual wealth with his colleagues in the industry. He humbly aspired to bring the technology from the US to the Philippines. Thus, he founded and pioneered in several associations in the country. Among these associations are the following:

Ø  Federation of Industrial Security Organizations of the Philippines (FISOP)
Ø  American Society for Industrial Security-Philippine Chapter (ASIS)
Ø  Philippine Society for Industrial Security (PSIS)
Ø  Association of Certified Fraud Examiners-Philippine Chapter (ACFE)
Ø  Association of Hotel Security Officers of the Philippines (AHSOP), now AESSCCI
Ø  Association of Professional Detectives and Investigators, Inc. (APDI)

His professional career started with a great educational foundation. He finished a degree in Bachelor of Science in Commerce at the University of Santo Tomas. Through his dynamic leadership, he was the Corps Commander of the UST-ROTC Class ’55. His life was full of challenges. As a businessman, he never stopped learning. He obtained a Master’s Degree in Business Administration at the Ateneo de Manila University and later received his Doctor of Philosophy at the Philippine College of Criminology.  For his professional training in detection and investigation, he also studied in the U.S.  Hence, he became an Active Professional Lie Detector Examiner, a Certified International Investigator, a Certified Protection Professional, a Certified Fraud Examiner, a Certified Security Professional, a Certified Private Detective and an Accredited Training Director by TESDA & the PNP.

He had touched so many lives in his cheerful and loving ways from his professional colleagues to his social friends and acquaintances. He was noted to be a great man, a very loving and faithful husband, a loving father, a good mentor, a very prayerful and a generous person. He shared his blessings, talent and intellect to everyone. He was a forgiving and a jolly person. He really knew how to make everyone smile and laugh in his own little way. He had inspired a lot of people with his speeches and lectures. Capt. Conrado G. Dumlao was known as “The Captain of Professional Detectives.”

His legacy lives on. He was the President of Truth Verifier Systems, Inc. (TVSI) for 48 years. This company, which he founded, specializes in lie detector (polygraph), detective and investigative services. Its clientele include private and public agencies.  TVSI is an ISO Certified Company and was awarded by the Philippine National Police as Hall of Fame Best Private Detective Agency. It was the most consistent awardee during the years 1999, 2006, 2007 and 2008. The firm operates all over the Philippines and in the U.S.

Tuesday, April 1, 2014

Physical and Verbal Clues of Lying Seminar

Physical and Verbal Clues of Lying Seminar

Private Detective Agency Manila Philippines

This unique seminar discussed about the common lying gestures as well as the other indications of deception. The participants were also given hints to easily detect whether someone is telling the truth or a lie in both verbal and written statements.  This truly helped the participants to have extraordinary skills in order to determine any unspoken lies behind a deceiving person.

The lecturer, Dr. Milagros O. Hernandez, is a faculty member of the Ateneo de Manila University – Center for Continuing Education. She is also the Chairman of the Philippine Society for Training Development’s Professional Development Committee.

Truth Verifier Systems, Inc. also offers in-house seminars on detective and investigative services. It also provides Private Detective Pre-Licensing and Re-Training Courses. These courses are approved and are authorized under R.A. 5487.

Melvin R. Royo