29 C.F.R. § 801.12
(a) Section 7(d) of the Act provides a limited exemption from the general prohibition on lie detector use in private employment settings for employers conducting ongoing investigations of economic loss or injury to the employer's business. An employer may request an employee, subject to the conditions set forth in sections 8 and 10 of the Act and §§ 801.20, 801.22, 801.23, 801.24, 801.25, 801.26, and 801.35 of this part, to submit to a polygraph test, but no other type of lie detector test, only if—
(4) The employer provides the examinee with a statement, in a language understood by the examinee, prior to the test which fully explains with particularity the specific incident or activity being investigated and the basis for testing particular employees and which contains, at a minimum:
(5) The employer retains a copy of the statement and proof of service described in paragraph (a)(4) of this section for at least 3 years and makes it available for inspection by the Wage and Hour Division on request. (See § 801.30(a).)
(Approved by the Office of Management and Budget under control number 1225-0170)
(c)
(1)
(e) Section 7(d)(2) provides that, as a condition for the use of the exemption, the employee must have had access to the property that is the subject of the investigation.
(f)
(g)