Nev. Rev. Stat. § 179.525
1. A supervising peace officer who, with other officers, or any peace officer who, alone, is attempting to gain control of a situation in which a person:
(b) Has committed or is believed to have committed a crime, is barricaded in an area or structure and is resisting arrest through the use or threatened use of force,
may direct the public utility which provides telephone service to the area or structure in which the hostages are being held or persons are barricaded, or to an area which is close to that area or structure, to interrupt the service on, divert, reroute or otherwise make temporary changes in telephone lines to enable the peace officer making the request to establish communication with the person holding the hostage, or among peace officers, or to deny communication to the person holding the hostage.
(Added to NRS by 1981, 1561)