Nevada Revised Statutes Title 14. Procedure in Criminal Cases § 171.172. When officer may arrest

Any peace officer of this state in fresh pursuit of a person who is reasonably believed by the peace officer to have committed a felony in this state or has committed, or attempted to commit, any criminal offense in this state in the presence of such officer, or for whom such officer holds a warrant of arrest, may hold in custody such person anywhere in this state.