1867 Ariz. Sess. Laws 22, An Act To Prevent The Improper Use Of Deadly Weapons And The Indiscriminate Use Of Firearms In The Towns And Villages Of The Territory, § 2

That any person or persons having or carrying any pistol or gun who shall in the public streets or highways discharge the same indiscriminately, thereby disturbing the peace and quiet, and endangering the lives of the inhabitants of any town or neighborhood in this territory, such person or persons upon conviction thereof before any Justice of the Peace in the county where such offense may be committed shall be fined in any sum not less than fifty dollars and imprisonment in the county jail not less than two nor more than ten days, in the discretion of the Justice of the Peace, together with the cost of prosecution.