The U.S. Chamber of Commerce called for numerous reforms to the Securities and Exchange Commission’s investigative process on Wednesday, in a new report some of whose provisions the markets watchdog said would weaken its ability to protect investors. The Chamber’s key recommendations lay out ways to bolster due process for defendants in SEC enforcement actions by strengthening policies surrounding in-house trials, admissions of wrongdoing and “Wells notices,” sent by the agency as a final warning to companies and individuals that it plans to bring charges against them.