Voice stress analysis widely used for truth verification

Voice stress analysis widely used for truth verification
Published: 12 January 2017 (4736 Views)
The use of lie detection tests has become topical in recent weeks, following reports in the local media last month that Zimbabwe Revenue Authority staff are to be given polygraph tests

Tests to determine the honesty of staff have been in use for a long time in Zimbabwe, as elsewhere, particularly where fraud or thefts are suspected and in areas where honesty is of the utmost importance, as is the case where money and payments are handled.

Safeguard Investigations for years used a Psychological Stress Evaluation (PSE) test to assist it in its investigations and to test the honesty of those seeking employment with clients who needed to ensure the personnel they were employing were honest.

Currently it uses Voice Stress Analysis technology, developed by VIPRE Technologies in the United States, for truth verification.

The Voice Stress Analysis system identifies stress in the voice as it passes through the voice folds in the throat, in response to a question that has consequences and requires a yes or no answer.

Unlike the polygraph that uses various body attachments to measure pulse, respiration and skin conductivity, the VIPRE system employs a less invasive voice recording method to obtain its result. It automatically generates a score-able chart that is analysed by the operator.

As with the polygraph, those subject to the test are asked a series of questions, including control questions to which the answers are known.

However, there are no wires connecting the subject to the testing system. The system just uses a microphone, which self-adjusts to background noises automatically.

The technology is used by Safeguard Investigations to verify for a client the integrity and honesty of a job applicant and employees in high risk areas such as finance, till operating, cash offices and transportation.

It is also used to test the honesty of suspects in an investigation and to confirm the integrity of Safeguard personnel, given the importance of honesty within the security profession.

While it is understandable that employees may feel anxious about undergoing truth verification tests, those who have nothing to hide should be relieved that such tests are likely to exonerate them from any wrong-doing.

"The process serves to exonerate, rather than implicate and separates the innocent from the guilty," explained Safeguard Investigations general manager Steven Jennings.

"It should also be seen as a positive for one's CV. The fact that a person has been tested (maybe a number of times in sensitive and high risk areas) and has consistently passed must be a significant advantage when wishing to progress in an organisation or move to other employment,c he said.

Safeguard Investigations conducts Voice Stress Analysis testing under the supervision of a qualified psychologist. It complies in all respects with legislation regulating the use and control of this equipment.

Voice Stress Analysis is widely used nowadays for truth verification by police forces and in insurance fraud investigations in many countries.

Safeguard Investigations carries out a wide variety of private investigations, including undercover operations. It has found the used of Voce Stress Analysis useful in eliminating suspects when investigating thefts and fraud, as well as in assisting clients to verify the honesty of potential or existing staff.

- Agencies

 0

You May Like These Videos

Comments

There are no comments.

Latest stories

MDC Alliance: The Election Bulletin - Issue 06

by MDC Communications | 17 July 2018 | 95 Views

Simple rigging proof mechanism

by S. Nhliziyo | 17 July 2018 | 86 Views

Chamisa to take ZEC head-on

by Staff rpeorter | 17 July 2018 | 85 Views

Matebeleland Chiefs petition Chiwenga over dispute

by Staff rpeorter | 17 July 2018 | 72 Views

Chamisa fails to shake off 'Grace Mugabe pact' claims

by Staff rpeorter | 17 July 2018 | 82 Views

Mnangagwa tells white farmers 'You are part of us'

by Staff rpeorter | 17 July 2018 | 92 Views

'Chigumba's arrogance reflective of her ignorance'

by Staff reporter | 17 July 2018 | 80 Views

Zanu-PF looking beyond polls, says Mnangagwa

by Staff reporter | 17 July 2018 | 68 Views

Chamisa calls for SADC, AU to protect election

by AFP | 17 July 2018 | 80 Views

President Mnangagwa man of the moment

by Elijah Chihota | 17 July 2018 | 81 Views

Congratulations to France

by Thomas Murisa | 17 July 2018 | 63 Views

Will Mnangagwa defy odds on 30 July?

by Benny Gudo | 17 July 2018 | 66 Views

ZEC: A menace tormenting Zimbabwe

by Benny Gudo | 17 July 2018 | 57 Views

Mnangagwa misleads Zimbabweans

by Staff reporter | 17 July 2018 | 116 Views

Zimra board pockets $300,000

by Staff reporter | 17 July 2018 | 84 Views

Senior MDC-Alliance leaders jump ship

by Staff reporter | 17 July 2018 | 125 Views

Chiwenga urges deserters to, 'Come back home'

by Staff reporter | 17 July 2018 | 96 Views

ZEC warns Chamisa, MDC-Alliance

by Staff reporter | 17 July 2018 | 114 Views

'Zanu-PF abusing State resources'

by Staff reporter | 17 July 2018 | 70 Views

Zec sued over disclosure of voters' details

by Staff reporter | 17 July 2018 | 68 Views

Musindo showers lavish praise on Madiro

by Staff reporter | 17 July 2018 | 61 Views

Chamisa's supporters released without charge

by Staff reporter | 17 July 2018 | 58 Views

Serial car thief jailed

by Staff reporter | 17 July 2018 | 51 Views

Chamisa rules out presidential election run-off

by Staff reporter | 17 July 2018 | 75 Views

Mugabe challenges default judgment

by Staff reporter | 17 July 2018 | 65 Views

Chamisa turns heat over ballot paper design

by Staff reporter | 17 July 2018 | 69 Views

'We tried talking to Mugabe but failed'

by Staff reporter | 17 July 2018 | 64 Views

Zec in fresh storm over polling booths

by Staff reporter | 17 July 2018 | 61 Views

Chiwenga embraces Chamisa's 'spaghetti roads'

by Staff reporter | 17 July 2018 | 68 Views

Mnangagwa 'steals' campaign concept

by Staff reporter | 17 July 2018 | 71 Views

'Mugabe stalled border upgrade'

by Staff reporter | 17 July 2018 | 42 Views

'Valerio Sibanda facilitated Mnangagwa's escape'

by Staff reporter | 17 July 2018 | 42 Views

Chief Charumbira drops another bombshell

by Staff reporter | 17 July 2018 | 38 Views

MDC Alliance in a fight they will not win

by Lloyd Msipa | 17 July 2018 | 71 Views

Langton 'School Boy' Tinago dies

by Staff reporter | 17 July 2018 | 48 Views

Fight breaks over 'Mugabe prophet'

by Staff reporter | 17 July 2018 | 34 Views