investigation and resignation In early 1972, George Beall, the United States Attorney for the District of Maryland, opened an investigation of corruption in Baltimore County, involving public officials, architects, engineering firms, and paving contractors. Beall's target was the then-current political leadership in Baltimore County. There were rumors that Agnew might be involved, which Beall initially discounted; Agnew had not been county executive since December 1966, so any wrongdoing potentially committed while he held that office could not be prosecuted because the statute of limitations had expired. As part of the investigation, Lester Matz's engineering firm was served with a subpoena for documents, and through his counsel he sought immunity in exchange for cooperation in the investigation. Matz had been kicking back to Agnew five percent of the value of contracts received through his influence, first county contracts during his term in Towson, and subsequently state contracts while Agnew was governor. Investigative reporters and Democratic operatives had pursued rumors that Agnew had been corrupt during his years as a Maryland official, but they had not been able to substantiate them. In February 1973, Agnew heard of the investigation and had Attorney General Richard Kleindienst contact Beall. The vice president's personal attorney, George White, visited Beall, who stated that Agnew was not under investigation, and that prosecutors would do their best to protect Agnew's name. In June, Matz's attorney disclosed to Beall that his client could show that Agnew not only had been corrupt, but that payments to him had continued into his vice presidency. The statute of limitations would not prevent Agnew from being prosecuted for these later payments. On July 3, Beall informed the new Attorney General, Elliot Richardson. At the end of the month Nixon, through his chief of staff, Alexander Haig, was informed. Agnew had already met with both Nixon and Haig to assert his innocence. On August 1, Beall sent a letter to Agnew's attorney, formally advising that the vice president was under investigation for tax fraud and corruption. Matz was prepared to testify that he had met with Agnew at the White House and given him $10,000 in cash Another witness, Jerome B. Wolff, head of Maryland's road commission, had extensive documentation that detailed, as Beall put it, "every corrupt payment he participated in with then-Governor Agnew". Richardson, whom Nixon had ordered to take personal responsibility for the investigation, met with Agnew and his attorneys on