A federal judge has upheld a park ranger’s use of a Taser on a man who tried to run away after being told not to fly his drone in Hawai‘i Volcanoes National Park.

Following two days of testimony in a nonjury trial in Hilo, U.S. Magistrate Judge Richard Puglisi found Travis R. Sanders guilty Wednesday of violating a lawful order and fined him $1,000. He also imposed a one-year ban, prohibiting Sanders from entering or being within the boundaries of the national park.

In his verdict, Puglisi said Sanders heard and understood yet disobeyed the park ranger’s lawful order to stop running away and that the ranger’s use of a Taser was entirely justified. According to the ranger’s citation, Sanders fled after the ranger tried to arrest him.

Sanders had been charged with two other counts of violating a lawful order for initially refusing to land his drone, then refusing to identify himself or produce identification. He had also been charged with violating park rules for launching and flying a drone in the park.

Prior to presenting testimony on the first day of trial, the government dropped the two park rules violations.

After the second day of testimony, Puglisi found Sanders guilty of violating a lawful order by continuing to run away but dismissed the other two lawful-order violations.

The incident happened April 25 outside the park’s Jaggar Museum overlooking Kilauea’s Halemaumau Crater.