NRS 199.220: Destroying evidence.

Every person who, with intent to conceal the commission of any felony, or to protect or conceal the identity of any person committing the same, or with intent to delay or hinder the administration of the law or to prevent the production thereof at any time, in any court or before any officer, tribunal, judge or magistrate, shall willfully destroy, alter, erase, obliterate or conceal any book, paper, record, writing, instrument or thing shall be guilty of a gross misdemeanor.