Testimony is shown before the Church Committee and the House Committee and his CONTEMPT is clearly shown to both houses
He was the only director to have been convicted of lying to the United States Congress over Central Intelligence Agency (CIA) undercover activities. In 1977, he was sentenced to the maximum fine and received a suspended two-year prison sentence.
Following the assassination of John F. Kennedy, Helms was made Deputy Director of the CIA under Admiral William Raborn. A year later, in 1966, he was appointed Director.
Helms's ultimate undoing was the CIA's role, at Nixon's behest, in the subversion of Chile's socialist government (Project FUBELT), and the overthrow of that country's democratically elected president, Salvador Allende, on September 11, 1973. According to Helms, Nixon had ordered the CIA to support a military coup to prevent Allende from becoming president in 1970. However, following the assassination of Army Commander-in-Chief General René Schneider by elements of the military, public support swung behind Allende, and he took office in October 1970. Subsequently, the CIA funneled millions of dollars to opposition groups and striking truck drivers in a continuing effort to destabilize the Allende government.
During his ambassadorial confirmation hearings before the Senate, Helms was questioned concerning the CIA's role in the Chilean affair. Because the operations were still secret and the hearings were public events, Helms denied that the CIA had ever aided Allende's opposition. However, later information uncovered by the Church Committee hearings showed that Helms's statements were false, and he was prosecuted and convicted in 1977. He received a two-year suspended sentence and a $2,000 fine. He wore the conviction as a badge of honor, and his fine was paid by friends from the CIA.
In 1972, Helms ordered the destruction of most records from the huge MKULTRA project, over 150 CIA-funded research projects designed to explore any possibilities of mind control.
The project became public knowledge two years later, after a New York Times report.
http://en.wikipedia.org/wiki/Richard_Helms