Nev. Rev. Stat. § 179.495
1. Within a reasonable time but not later than 90 days after the termination of the period of an order or any extension thereof, the judge who issued the order shall cause to be served on the chief of the Investigation Division of the Department of Public Safety, persons named in the order and any other parties to intercepted communications, an inventory which must include notice of:
(b) The fact that during the period wire, electronic or oral communications were or were not intercepted.
Except as otherwise provided in NRS 239.0115, the inventory filed pursuant to this section is confidential and must not be released for inspection unless subpoenaed by a court of competent jurisdiction.
(Added to NRS by 1973, 1747; A 1975, 1520; 1983, 119; 1985, 1976; 2001, 2572; 2007, 2077; 2015, 2493)