Reciprocal disclosure of lists of witnesses and information relating to expert testimony; continuing duty to disclose; protective orders; sanctions.
Nev. Rev. Stat. § 174.234
in effect1. Except as otherwise provided in this section, not less than 5 judicial days before trial or at such other time as the court directs:
(a) If the defendant will be tried for one or more offenses that are punishable as a gross misdemeanor or felony:
(1) The defendant shall file and serve upon the prosecuting attorney a written notice containing the names and last known addresses of all witnesses the defendant intends to call during the case in chief of the defendant; and
(2) The prosecuting attorney shall file and serve upon the defendant a written notice containing the names and last known addresses of all witnesses the prosecuting attorney intends to call during the case in chief of the State.
(b) If the defendant will not be tried for any offenses that are punishable as a gross misdemeanor or felony:
(1) The defendant shall file and serve upon the prosecuting attorney a written notice containing the name and last known address of any witness the defendant intends to call during the case in chief of the defendant whose name and last known address have not otherwise been provided to the prosecuting attorney pursuant to NRS 174.245 ; and
(2) The prosecuting attorney shall file and serve upon the defendant a written notice containing the name and last known address or place of employment of any witness the prosecuting attorney intends to call during the case in chief of the State whose name and last known address or place of employment have not otherwise been provided to the defendant pursuant to NRS 171.1965 or 174.235 .
2. If the defendant will be tried for one or more offenses that are punishable as a gross misdemeanor or felony and a witness that a party intends to call during the case in chief of the State or during the case in chief of the defendant is expected to offer testimony as an expert witness, the party who intends to call that witness shall file and serve upon the opposing party, not less than 21 days before trial or at such other time as the court directs, a written notice containing:
(a) A brief statement regarding the subject matter on which the expert witness is expected to testify and the substance of the testimony;
(b) A copy of the curriculum vitae of the expert witness; and
(c) A copy of all reports made by or at the direction of the expert witness.
3. After complying with the provisions of subsections 1 and 2, each party has a continuing duty to file and serve upon the opposing party:
(a) Written notice of the names and last known addresses of any additional witnesses that the party intends to call during the case in chief of the State or during the case in chief of the defendant. A party shall file and serve written notice pursuant to this paragraph as soon as practicable after the party determines that the party intends to call an additional witness during the case in chief of the State or during the case in chief of the defendant. The court shall prohibit an additional witness from testifying if the court determines that the party acted in bad faith by not including the witness on the written notice required pursuant to subsection 1.
(b) Any information relating to an expert witness that is required to be disclosed pursuant to subsection 2. A party shall provide information pursuant to this paragraph as soon as practicable after the party obtains that information. The court shall prohibit the party from introducing that information in evidence or shall prohibit the expert witness from testifying if the court determines that the party acted in bad faith by not timely disclosing that information pursuant to subsection 2.
4. Each party has a continuing duty to file and serve upon the opposing party any change in the last known address, or, if applicable, last known place of employment, of any witness that the party intends to call during the case in chief of the State or during the case in chief of the defendant as soon as practicable after the party obtains that information.
5. Upon a motion by either party or the witness, the court shall prohibit disclosure to the other party of the address of the witness if the court determines that disclosure of the address would create a substantial threat to the witness of bodily harm, intimidation, coercion or harassment. If the court prohibits disclosure of an address pursuant to this subsection, the court shall, upon the request of a party, provide the party or the partys attorney or agent with an opportunity to interview the witness in an environment that provides for protection of the witness.
6. In addition to the sanctions and protective orders otherwise provided in subsections 3 and 5, the court may upon the request of a party:
(a) Order that disclosure pursuant to this section be denied, restricted or deferred pursuant to the provisions of NRS 174.275 ; or
(b) Impose sanctions pursuant to subsection 2 of NRS 174.295 for the failure to comply with the provisions of this section.
7. A party is not entitled, pursuant to the provisions of this section, to the disclosure of the name or address of a witness or any other type of item or information that is privileged or protected from disclosure or inspection pursuant to the Constitution or laws of this state or the Constitution of the United States.
Source: NV Statutes (Official Site)URL: https://www.leg.state.nv.us/nrs/NRS-174.htmlFetched: 10/4/2026