Mr. Kerik served most notably as an advisor to the U.S. Presidential Envoy of Iraq, and New York City's Police and Correction Commissioner. His term in the NYPD was marked by dramatic reductions in crime, improved community relations, and his oversight of the rescue, recovery and investigation of the World Trade Center attack on September 11, 2001. On December 3, 2004, President George W. Bush nominated Mr. Kerik as Secretary of the U.S. Department of Homeland Security. One week later, Mr. Kerik withdrew his name from consideration, after admitting that he failed to pay payroll tax for his children's nanny. After five years of state and federal investigations, Mr. Kerik pled guilty to false statements and tax charges primarily relating to his children’s nanny and discounted apartment renovations. He was sentenced to 48 months in federal prison. He surrendered to the U.S. Federal Bureau of Prisons at a minimum-security prison camp in Cumberland, Maryland on May 17, 2010, and was released from custody on October 15, 2013.