Truth Verifier Systems, Inc.
The Official Blog of the Philippines' Best Private Detective Agency.
Tuesday, November 12, 2013
THE ADVANCED INVESTIGATION AND POLYGRAPH SEMINAR BY TRUTH VERIFIER SYSTEMS, INC.
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TVSI President Capt. Conrado G. Dumlao Ph.D, ASIT Director Nathan J. Gordon, TVSI CEO Rosario Dumlao Nulud, Training Director Dr....
Monday, October 21, 2013
TVSI joined the PSIS 7th National Security Management Convention
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PSIS National President Mr. Gilbert Lazo Daquiaog poses with TVSI President Conrado G. Dumlao, Ph.D at TVSI Booth ...
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