The home and office of Kyle Foggo, who stepped down on Monday as the Central Intelligence Agency's No. 3 official, were searched today. Mr. Foggo resigned after becoming entangled in a widening investigation that has already brought down former Representative Randy Cunningham. Mr. Foggo's workplace in Langley, Va., and his residence in Virginia were searched this morning by agents of the Federal Bureau of Investigation and the C.I.A. inspector general's office. April Langwell, a spokeswoman for the F.B.I.'s San Diego office, said Mr. Foggo had been under investigation by the Internal Revenue Service and the Defense Criminal Investigative Service of the Defense Department's inspector general's office, as well as by the C.I.A.'s inspector general and the F.B.I. The inquiry by the C.I.A.'s inspector is examining whether he improperly awarded agency contracts to a longtime friend, Brent R. Wilkes, a military contractor whose companies have received nearly $100 million in government contracts over the years. Mr. Foggo, 51, has admitted attending poker parties throughout the 1990's that Mr. Wilkes held in a suite at the Watergate Hotel in Washington. The parties were primarily attended by C.I.A. officials and congressmen, and Mr. Cunningham, a California Republican, occasionally attended. Several news media accounts have reported that prostitutes frequented the parties.