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Your Trusted Private Investigator in Shelby, NC
At Truth Verification, we bring over two decades of law enforcement expertise and 20 years of national security experience to every case we handle. Our founder, David Poston, combines specialized training in polygraph science with advanced investigative techniques to uncover critical details others might miss. We specialize in criminal defense investigations, exposing law enforcement errors, and providing state-of-the-art surveillance solutions.

Our commitment to meticulous analysis and ethical practices ensures clients receive the highest level of professional service. We serve Shelby, NC and surrounding areas with discretion and integrity, offering free consultations to help clients navigate complex legal challenges. Our team's unique blend of intelligence community background and investigative acumen positions us to deliver actionable results in even the most sensitive cases.
Services
Polygraph Testing Criminal Investigations GPS Tracking Remote Surveillance Technical Surveillance Countermeasures
Highlights and features
  • We offer 22 years of law enforcement experience combined with 20 years in national security.
  • Our founder holds advanced degrees in criminal justice and forensic psychology.
  • We utilize state-of-the-art polygraph and surveillance technology.
  • We provide expert analysis of law enforcement investigative flaws.
  • Our team maintains active memberships in six professional polygraph associations.
Associations and certifications
  • North Carolina Licensed Private Investigator LIC# 5351
  • North Carolina Licensed Polygraph Examiner LIC# 385-P
What people say
Most kind hearted and professional Honest and ethical investigator Hard working and compassionate Thorough and determined Best in the business
Update Listing
Services
Polygraph Testing
Our polygraph services measure physiological responses to detect deception through advanced instrumentation. We specialize in criminal defense evaluations, pre-employment screenings, and fidelity testing. Our examiner holds multiple certifications and follows strict scientific protocols to ensure accurate, court-admissible results.
Criminal Investigations
We conduct comprehensive criminal defense investigations focusing on exposing law enforcement errors and procedural flaws. Our team analyzes case evidence, identifies investigative omissions, and prepares detailed reports to strengthen defense strategies. Services include crime scene analysis and witness statement evaluations.
GPS Tracking
Our state-of-the-art GPS tracking systems provide real-time vehicle location data with detailed movement history. The technology captures speed, route details, and geofence violations to support investigative needs. Clients receive comprehensive tracking reports for legal proceedings or personal security purposes.
Remote Surveillance
We deploy advanced remote surveillance equipment with night vision capabilities for cost-effective monitoring solutions. Our systems provide live streaming and recorded documentation of target locations without requiring on-site personnel. This service is ideal for property security and activity documentation.
People
David Poston
Owner/Operator
David spent 20 years in national security intelligence followed by 22 years in law enforcement. He holds a B.S. in Criminal Justice, is pursuing an M.S. in Forensic Psychology, and maintains multiple polygraph certifications. He is actively involved in six professional associations.
Questions
What makes Truth Verification different from other investigative firms?
Our founder's unique combination of 20+ years in national security intelligence and 22 years of law enforcement experience provides unparalleled investigative depth.
Do you offer services outside Shelby, NC?
We serve clients statewide through on-site visits and remote surveillance solutions, with polygraph services available at our Shelby headquarters.
How do you handle complex criminal defense cases?
We specialize in identifying law enforcement investigative flaws through detailed analysis of procedural errors, evidence handling, and witness testimony inconsistencies.
What polygraph technology do you use?
We employ state-of-the-art polygraph systems that measure multiple physiological indicators following American Polygraph Association best practices.
Can you help with employment-related investigations?
Yes, we conduct pre-employment screenings and employee theft investigations following federal EPPA guidelines for corporate clients.
Reviews (3)
Jeffery Sill
Aug 02, 2019 Report
Mr. Poston is very hard working, thorough, and compassionate. He cares about people and you can tell he loves what he does.
Christian Faulkner
Jun 07, 2019 Report
David poston is very thorough with his work explaining every detail of his type of polygraph he explained all the instrument in detail
Barry Philbeck
Sep 17, 2018 Report
Mr Poston is very honest and works hard to get to the truth. I was very pleased with his work. As far as Im concerned hes the best in the business.
Barry Philbeck