11. But Hughes questions whether the home-based Truster software can be of much use without professional training. 12. But that doesn't mean Truster won't be a hit with consumers, he said. 13. Truster 's developers insist it does work _ by analyzing the stress in a person's voice.14. What concerns polygraph specialists is whether Truster 's makers are, well, telling the truth about its abilities. 15. So say the makers of Truster , an inexpensive new lie-detector test that can also be used over the phone. 16. A user installs the Truster software on a Windows 95 or Windows NT computer and then links the computer to the phone. 17. Electronics distributors say if the company can sell 60, 000 copies of Truster , it should be considered a financial success. 18. The prospect of Truster or similar programs installed on thousands of home and business PCs, however, worries traditional polygraph specialists. 19. Though the changes are inaudible to the average listener, Truster can pick out and interpret the fluctuations, its developers say. 20. And because Truster claims to fill the same basic function as a polygraph, the laws would likely cover its use as well.
