Law enforcement veteran
Arpaio's office claims to be the third largest sheriff's office in the United States and boasts more than 3,400 employees.
Before becoming sheriff, Arpaio was a federal narcotics agent, who eventually headed the Arizona office of the Drug Enforcement Agency, according to his biography on the MCSO website.
In April, a postal inspector intercepted an explosive package addressed to him. It was mailed a day after the department received a death threat from a major drug cartel.
In a CNN interview before his trial began, Arpaio said his department would continue to pursue illegal immigrants.
"I know I'm doing the right thing. I'm not going to surrender by those little small groups, people that don't like what I'm doing. You think I'm going to surrender? It'll never happen," the sheriff said at the time.
But on Friday attorney Casey said "America's Toughest Sheriff" will comply with the court's ruling -- for now.