(6) When a temporary writ of injunction has been filed by the department against an employer because of the employer's failure or refusal to file a required report or to pay assessed contributions, penalty, and interest, a field auditor may inspect the enjoined business premises during reasonable hours and interview any interested parties having knowledge of or being involved with the enjoined employer to ensure that such enjoined employer and all of the employer's agents, servants, employees, and assigns are observing the conditions of the temporary writ of injunction. This rule is intended to implement Iowa Code sections 96.7(1), 96.7(3), 96.8(1), 96.11(1), 96.11(6)"a," 96.11(7), 96.14, 96.16 and 96.20(3).