AFI116Investigative Interview Techniques To Get The Truth (by Jeffery Ang)


For the first time, the secrets of the interrogation will be revealed. It is far from what we see on television or in the movies. They often portray an interrogation as simple as presenting the evidence and the suspect breaking down and confess in a matter of minutes. This is pure fiction. If the investigator has compelling evidence there is no need for interrogation. It is precisely why an interrogation is conducted, to get the evidence from the suspect and this workshop will show you how to do it.


Course Fee SGD 580
Course Duration 1 Day
Course Timing 9:00am - 5:00pm
Course Venue M Hotel or similar
SDF Approved NA
Skills Future Credit NA
Upcoming Courses

This course conducted by an experience practitioner trainer will provide participants with the application skills to conduct effective interrogation to get the truth.

At the end of the course the participants will be able to:

  • Understand the legal and evidential issues relating to confessions
  • Apply the analysis method to identify potential evidence in any case.
  • Understand the psychological factors in an interrogation
  • Apply the 5 step interrogation technique to get the truth
  • Appreciate the science and art of an interrogation

The course is packaged with the trainer's Book - Investigative Interview Techniques 2: The Truth about Telling Lies (A practical guide book on conducting suspect interviews in an investigation)


  • Admissibility of accused statements
  • Evidential rules & requirements
  • 3P case analysis method© to identify potential evidence
  • Video recording evidence and interview
  • Practical application on actual past cases

To prove your case it is necessary to understand the rules relating to the admissibility of evidence. Many investigations focus only on the identification and collection of existing evidence that are apparent. However potential evidence especially in cases with little initial evidence requires skilful analysis and follow-up investigations to uncover more evidence that may in isolation be insignificant but collectively conclusive proof. These potential evidence even if undiscovered are extremely effective when use during an interrogation.


  • The 3C confidence equation© - pre-interrogation advantage
  • Psychological factors in conducting an effective interrogation
  • 5 step perception creator© in getting a confession
  • Multiple scenario practical application

This is unequivocally the highlight of the course. Though it is the most sophisticated skill to learn, I have customized the training to allow practitioners to acquire the fundamental skills and with practice, they can achieve reasonable proficiency in its application. I have adapted over 30 years of criminal and corporate interrogation experience that allows the techniques to be applied systematically for more effective application of skills to specific case circumstances. Essentially it is the art of persuasion using psychological methods to convince the suspect that we have the evidence and confession is his best option.

  • Professionals such as Auditors, Financial Controllers, Accountants, Lawyers, prosecutors, Law Enforcement Officers, Investigators, Educators.
  • Senior Management, Team Leaders, Line Managers, Anyone with a supervisory function.
  • Officers/ Managers in Recruitment, Human Resource, Procurement.
  • Officers/ Managers managing Feedback/ Complaints.
  • Officers/ Managers managing contractors/ vendors
  • Insurers, Charities, Businesses and anyone who wants to get the truth and establish evidence to support it.

Lecture and plenty of case studies.

Jeffery Ang

Jeffery Ang

Jeffrey Ang has extensive experience in training, conducting interviews and investigations. He was with the Singapore Police, Commercial Affairs Department and CID for 27 years investigating many fraud cases and dealing with major syndicates. He received a letter of appreciation from the recording industry (IFPI) in 1997 for leading a successful operation against a major fraud syndicate. Because of his vast experience he was selected to be the Training Officer for CID in April 1998. There he developed the Interview Techniques Course and became the pioneer instructor in the Course conducted by CID for all Police Investigators. He also played a major role in the setting up of the new School of Criminal Investigation for CID in 2001 and the development of the various Investigation courses until his retirement in Sep 2002. During that time he was presented with two Commendations and two Director CID Awards.

He has conducted many In-house Interview and Investigation courses for public and private organizations like the Commercial Affairs Department, Singapore and Malaysian Customs, Prisons, Ministry of Education, School clusters, Council for Private Education, BCA, IRAS, HSA, NEA, MINDEF, MTI, MOE, SGX, M1, CISCO, Prudential, Great Eastern Life, AIA and NTUC Income insurers, Institute of Singapore Chartered Accountants, Comfort Delgro, OCBC Bank, Mandarin and Orchard Hotel groups, Hilton Hotel group in Malaysia, Police Integrity Commission in Maldives, Fraud Investigation course for Ministry of Finance Afghanistan in Dubai, Fortune 500 Company Flextronics regional auditors in China where he received a Testimonial for providing an excellent program and many more.

He was the Head of Loss Prevention for Sentosa Island for 5 years overseeing the prosecution, enforcement, security and investigation functions with about 100 staff under him. In recognition for his outstanding performance, he received a Commendation from the Singapore Police Force for the year 2006.

He currently conducts training and consutancy globally. He is a practitioner trainer and licensed private investigator providing integrity interview for job applicants, staff interrogation and investigation services using the same techniques provided in his training. After he completed his first book on conducting Investigative interviews for distribution only in his course with overwhelming response, he decided to write his second book on conducting a non-confrontational interrogation. He wrote his third and final book Investigation 101 on conducting fraud and misconduct investigation because of overwhelming requests for such training and the increasing dishonest society we live in.

View Other Courses by Jeffery Ang