Founded in 2001, Polygraph Investigative Services is Asia's leading private polygraph agency providing a wide spectrum of polygraph aka lie detection services, including polygraph testing, training and consulting, interviewing training and polygraph equipment sales. Our team of polygrah experts serve clients all over the ASIA PACIFIC REGION and Western countries, including China, Hong Kong, Macau, Indonesia, Thailand, Malaysia, Vietnam, Cambodia, Taiwan, Middle East - United Arab Emirates, Bahrain, Qatar, India, Australia, New Zealand, Brunei, Philippines,etc. We conduct lie detector tests in our office in Singapore as well as in countries where our clients are located. Our professional services are trusted by Singapore Government agencies (See list of Government clients), top legal firms, multinational companies, small businesses and private individuals. All cases are treated with the strictest confidentiality. Our tests are always conclusive with greater than 98% accuracy. 

Its founder and Chief Polygraph Examiner is Mr Koa Fung Chew, PPA, PBS, a retired Superintendent of Police from the Singapore Police Force, an expert in Polygraph Testing and Interviewing with more than 40 years of experience in government and corporate investigations related to criminal, intelligence and security. 

Our office is convenienly located in the city centre in Singapore, about 15 minutes drive from Changi International Airport. There are many hotels and other amenities within walking distance.

Direct Line: (+65) 67379117
Address: Polygraph Investigative Services,
151 Chin Swee Road #03 - 33,
Manhattan House,
Singapore 169876.