The raids Thursday by federal agents of Pugh’s home, the MCAT offices, Brown’s home and other sites associated with the mayor came as the Maryland State Prosecutor’s Office has been investigating her sales of “Healthy Holly” children's books to various nonprofits and companies that do business with the city. While she sat on the board of directors for the University of Maryland Medical System, Pugh sold 100,000 copies of the book to the hospital network for $500,000 in a no-bid deal.