Federal officials are auditing Roxbury Community College for suspected lapses in its reporting of crimes committed on campus - the latest in a series of controversies for College President Terrence Gomes. Officials with the federal Department of Education will arrive on campus Tuesday seeking to find out why the college has failed to report more serious allegations of crimes on campus. The officials have unofficially learned of at least three reports by students of such crimes, including sexual assault, over the past several years, according to a person familiar with the inquiry.