Investigations & Polygraph

The Polygraph and Investigations Department of TSU International is well established and employs highly skilled and experienced investigators supported by qualified polygraph examiners. The TSU Polygraph & Investigation team has vast knowledge and experience in the field of criminal, financial and corporate investigations nationally as well as internationally. Our Polygraphers are affiliated to the American Polygraph Association (APA) as well as the South African Polygraph Association (SAPA). TSU International investigators are affiliated to the International Association of Auto Theft Investigators (IAATI) as well as the Association of Certified Fraud Examiners (ACFE).

“We investigate all matters related to Corporate, criminal and
financial issues.”

Investigation and polygraph services:

  • Investigation of all matters be it of a criminal, financial or corporate nature
  • Recovery of lost and stolen property
  • Preparation of files for prosecution purposes
  • Liaison with all relevant law enforcement agencies and prosecution authorities
  • Pre-employment – vetting and screening
  • Periodic testing of staff
  • Employee drug testing – individual or mass screening
  • Professional polygraphs – truth verification and confirming statements
  • Specific incident testing and investigation of theft, fraud and infidelity
  • Evidence collection and investigative leads
  • Intelligence gathering through a network of informants

“We pride ourselves in ethical and fair conduct & providing incomparable service to our clients”


  • VIP Guarding
  • TSU Protect Mobile Safety & Security App
  • Specialised Training Solutions
  • Consulting / Risk Management
  • Tactical Support Teams
  • Riot / Crowd Control Management
  • Technical Security Solutions
  • Armed Escorts
  • Executive Support
  • Executive Protection
  • A-Grade Armed Guards
  • Polygraph and Investigations