Investigation

Know everything on anything. TVSI erases your doubts and fears by furnishing you with factual information gathered with our systematic approach. All work of course is done discretely so that your search for the truth remains a secret.

Lie Detector Test

The Lie Detector Test is used in specific case investigation pair testing, periodic clearance and pre-employment. It detects the guilty and exonerates the innocent among suspects in any irregularity and from unjust accusation unwarranted suspicion and malicious gossip.

The Lie Detector Test is a reliable and scientific tool.

It is admissible as circumstantial evidence by the U.S. Supreme Court.

Lifestyle Check

Your employees are prone to commit dishonesty due to gambling, drugs/alcohol, extra marital relations, living beyond means and economic needs.

Locate Persons / Properties 


Track down a lost friend, relative, spouse or any other person who has disappeared or who has “skipped out”

To help you determine ownership of property, property location, type of property for many law offices, courts, and insurance agencies. We can help you make a solid case when you are considering collection and/or legal action.

Process Serving

TVSI's highly competent and experienced private detectives make sure that summons is served to the right person. We do process serving although serving time may vary nationwide.

Records Verification / Evidence Gathering

Truth Verifier Systems is widely regarded in the Philippines as an authority on verification of documents, which can take a very wide range of forms. Contact us for a deeper level of due diligence before you enter into a long term situation, or to verify insurance and other claims.

Surveillance / Undercover


Catch the infidel spouse or an employee who’s moonlighting or cheating the company.
Check out the facts on disability claims for Workmen’s Compensation. They are credible expert witness in court.

Undercover private detectives can be your eyes and the ears to monitor what’s going on in your business while you’re out.