Those who think the information brought out at a criminal trial is the truth, the whole truth, and nothing but the truth are fools. Prosecuting or defending a case is nothing more than getting to those people who will talk for your side, who will say what you want said.
The public regards lawyers with great distrust. They think lawyers are smarter than the average guy but use their intelligence deviously. Well, they're wrong. Usually they are not smarter.
Most people think that 'I don't recall' is a clever answer. But it isn't that clever. You might not recall that you had bacon and eggs for breakfast- but if you killed your mother, you'll remember it.