Paul E. Kamerick, 67, a retired Senate investigator and counsel and former special agent with the FBI, died Dec. 25 in Sibley Memorial Hospital after a heart attack. He lived in Chevy Chase.

Mr. Kamerick became a consultant to the Senate Appropriations Committee in 1952, later becoming the committee's chief investigator and staff director of its foreign aid subcommittee.

From 1957 to 1959, he was an assistant counsel to Robert Kennedy in the Senate investigation on labor racketeering. He later became administrative assistant of the permanant investigations subcommittee of the old Senate Government Operations Committee. He held that post when he retired in 1973.

Mr. Kamerick was born in Ottumwa, Iowa. He was a graduate of St. Ambrose College in Davenport, Iowa, and earned a law degree at Georgetown University. He spent 10 years with the FBI, in Philadelphia, Boston, Chicago, and Washington, before becoming a Senate investigator.

He was a member of the Society of Former Special Agents of the FBI. Mr. Kamerick was a member of the Shrine of the Most Blessed Sacrament Parish in Chevy Chase.

Survivors include his wife, the former Marianne Smith, of Chevy Chase; two sons, Anthony, of Bethesda, and Patrick, of Chevy Chase; a daughter, Army Maj. Susan Kremmer of Lawton, Okla.; a sister, Kathleen Graf of Iowa City, Iowa, and a brother, Dr. John Kamerick of Cedar Falls, Iowa.