Most of the time the U.S. Securities and Exchange Commission picks its top cop from Wall Street's best defense lawyers, but its latest director of enforcement comes from the prosecution side of the law. In a profile in the Wall Street Journal, Gurbir Grewal, who was New Jersey's attorney general for more than three years, is expected to seek higher fines for securities wrongdoing and to bolster efforts to remove bad actors from their jobs. "We can't arrest them," Grewal told the WSJ in an interview. "We can get them out of the industry." After starting out in private practice, Grewal, a Sikh, decided to become a federal prosecutor in the wake of 9/11 after he encountered racism. He felt that as a member of law enforcement, he could alter people's misunderstandings and biases, the WSJ said. He worked in the Brooklyn U.S. attorney's office, then later became a federal