As used in this subchapter:
(1) “Voice stress analysis” means the procedure for analyzing the responses of an individual to a specific set of questions;
(2) “Voice stress analysis examiner” means an individual who has been trained in the operation of a voice stress analysis machine and who maintains a current certificate from a recognized training facility; and
(3) “Voice stress analysis machine” means a device that has the ability to electronically analyze the responses of an individual to a specific set of questions and to record the analysis, both digitally and on a graph.