Nevada Revised Statutes
Chapter 208 - General Provisions
NRS 208.055 - "Knowingly" defined.

"Knowingly" imports a knowledge that facts exist which constitute the act or omission of a crime, and does not require knowledge of its unlawfulness. Knowledge of any particular fact may be inferred from the knowledge of such other facts as should put an ordinarily prudent person upon inquiry.
[Part 1911 C&P § 29; RL § 6294; NCL § 9978]—(NRS A 1973, 355; 1983, 815; 1985, 510; 1997, 1602)