NRS 223.160: Governor may order armed force when unlawful or riotous assembly.

1. When there is an unlawful or riotous assembly, with the intent to commit a felony, or to offer violence to person or property, or to resist, by force, the laws of the State, and the fact is made to appear to the Governor, the Governor may issue an order directed to the commanding officer of a division, brigade, regiment, battalion or company, to order his or her command, or any part thereof (describing the kind and number of troops), to appear at a time and place therein specified, to aid the civil authorities in suppressing violence and enforcing the laws.

2. The commanding officer to whom the order is given shall forthwith obey the same, and the troops so required shall appear at the time and place appointed, armed and equipped with ammunition as per inspection, and shall execute any order that they shall then and there receive, according to law.