The Securities and Exchange Commission named Stephen Cohen associate director of its enforcement division, replacing Christopher Conte, who left the agency in September. Cohen has been a senior advisor to SEC Chairman Mary Schapiro the past two years, providing counsel on issues including enforcement and compliance of various parts of the Dodd-Frank Act such as the whistleblower legislation and rulemaking. The regulator said Cohen also led the agency-wide initiative to improve the handling of tips, complaints and referrals. "The Enforcement Division will benefit greatly from Steve’s intelligence, judgment, and determination as well as his comprehensive understanding of our securities laws and his grasp on the way the Division functions," said Robert Khuzami, director of the SEC’s division of enforcement. "We are excited that he has agreed to return to the Division and take on this new challenge." Write to Jason Philyaw.