He was among many House members who accepted favors from Tongsun Park, the South Korean lobbyist and intelligence agent.

In 1976, Ranard testified to Congress on human rights violations in South Korea and the role of South Korean lobbyists in Washington.

That was when he and many other House members were found to have received favors from Tongsun Park, the South Korean lobbyist and intelligence agent who was accused of buying influence in Washington for his Government.

In 1978, Roybal was involved in a vote-buying investigation known as the Koreagate scandal, in which he failed to properly report to the House Ethics Committee a gift of $1000 from a South Korean lobbyist, Tongsun Park.

Donald L. Ranard, a longtime Foreign Service official who played a key role in uncovering the role of South Korean lobbyists in Washington in the mid-1970's, died on Saturday at Georgetown University Hospital.

A federal judge in New York denied bail to Tongsun Park, the Korean lobbyist facing charges in the scandal surrounding the United Nations oil-for-food program in Iraq, on the ground that he might flee the United States if released.

But the 1980 Abscam investigation resulted in the imprisonment of seven legislators, and a 1978 scandal involving bribes from Korean lobbyists to members of Congress led to three indictments and one conviction.

Two Charged in Food-for-Oil Case An American oil trader and a Korean lobbyist were charged in connection with the corruption surrounding the United Nations oil-for-food program.

An American oil trader and a Korean lobbyist with a scandalous past were charged yesterday in connection with illegal gains and kickbacks involving the United Nations oil-for-food program during Saddam Hussein's regime in Iraq.

Several lawmakers were driven from politics in the 1970's when their financial relationships with Tongsun Park, a South Korean lobbyist, became known.