Baltimore Business Journal Defense costs in the case of former Baltimore investment banker Nathan A. Chapman Jr. have reached at least $5.3 million, even with some aspects of the case unresolved. Chapman, founder of now-defunct eChapman Inc., was sentenced in November to seven and a half years in prison. Prosecutors said Chapman, a former state pension system investment manager, fraudulently invested millions of dollars in state pension money into eChapman\'s initial public offering. With legal bills for Chapman and other eChapman employees multiplying, National Union Fire Insurance Co. of Pittsburgh, Pa. , has asked Baltimore \'s federal court for help sorting them out. National Union provided directors and officers\' liability coverage to eChapman. D&O policies protect corporate brass from lawsuits and regulatory actions for \"wrongful acts.\" Defense costs in the $5 million range \"would not strike me as being outside the norm in these types of cases,\" said Peter Henning, a law professor at Wayne State University in Detroit who co-edits a Web log on white-collar crime. \"The lawyers come from the best firms. This is not the public defender\'s office.\"