The U.S. Securities and Exchange Commission on Thursday accused a senior Nelson Mullins Riley & Scarborough partner, Robert Crowe, of playing a key role in an illegal “pay-to-play” scheme aimed at helping State Street Bank and Trust Co. secure public pension contracts in Ohio.

While State Street agreed to pay $12 million to settle the agency’s claims, the SEC on Thursday filed a civil complaint in Ohio federal court against Crowe, a Boston and Washington, D.C.-based co-chair of Nelson Mullins’ government affairs practice.