China has instead turned to persuasion to get people back from countries like Canada and the United States, where many of these suspects have gone. In a brief statement, China’s graft-fighting Central Commission for Discipline Inspection said Zeng Ziheng had come back to the country of his own accord after “successful admonishment.” It gave no details of how that was achieved, but said China’s justice and foreign ministries assisted. Zeng, 44, had been an engineer in the northern province of Henan.