Two officials said Thursday night they have been subpoenaed to answer questions next week before a federal grand jury about a high-profile Arizona sheriff who gained attention for aggressively cracking down on illegal immigration. Arpaio is widely known for tough jail policies and pushing the bounds on local immigration efforts. He has led a dozen crime and immigration sweeps, some in heavily Latino areas. Critics allege that some of Arpaio's deputies racially profiled people during immigration sweeps. But Arpaio maintains that people pulled over in the sweeps were approached because deputies had probable cause to believe they had committed crimes.