In 2008, investigators from the Office of the State Prosecutor executed a search warrant at Dixon's residence in southwest Baltimore. Around the same time, several subpoenas were issued to aides. The investigation looked at gifts, including several fur coats, as well as Dixon's spending habits. Two of Dixon's associates—campaign chair Dale Clark and Mildred Boyer, a businesswoman who had hired Dixon's sister—pleaded guilty in 2008 to tax charges and cooperated with prosecutors during the Dixon investigation. The affidavit filed to support a search warrant on the company Doracon was published by "The Baltimore Sun" in June 2008; the affidavit stated that Dixon was being investigated regarding bribery.