The following points were made yesterday during testimony by Fawn Hall, secretary to fired National Security Council aide Oliver L. North and a closing statement by House Iran-contra committee Chairman Lee H. Hamilton (D-Ind.):

ON SHREDDING DOCUMENTS:

Hall said she shredded North's telephone records last Nov. 21 to prevent the Iran-contra initiative from becoming unraveled. She repeated an earlier statement that shredding documents made her feel uneasy but said, "I believed in Col. North and there was a very solid and very valid reason that he must have been doing this. And sometimes you have to go above the written law, I believe." She said she spirited documents out of the Old Executive Office Building by hiding them in her clothing so that they would not fall into the wrong hands. "Well, it wasn't the KGB that was coming, Miss Hall. It was the FBI," Sen. Warren B. Rudman (R-N.H.) responded. She said she did not consider her activities part of a cover-up. "I use the word 'protect,' " she said.

ON THE HEARINGS TO DATE:

Hamilton said the 18 witness so far have produced "some of the most extraordinary testimony ever presented to Congress." He said the witnesses, in more than 100 hours of hearings, have told "a story of deception of the Congress and the American people" and "a story of remarkable chaos in the processes of government." Hamilton said the committees had heard a "depressing story." He said the "government cannot function unless officials tell the truth. The Constitution only works when the two branches of government trust one another and cooperate."