If you really can't remember something they ask you about, just say so but don't make up something just to sound good. If you lie under oath, that is a crime and you could end up in a lot of trouble.
Witnesses are like pieces of a puzzle.
If you are testifying in a criminal case and you were involved in committing a crime, you have the right not to admit that in court. It's called the right against self-incrimination, protected by the 5th amendment of the United States Constitution. If you find yourself in a situation where you might incriminate yourself, tell the judge you'd like to speak with a lawyer and the judge should appoint one for you. The information contained in this site is made available as a public service to the general public and is not intended to serve as legal advice. You should consult a trained legal professional for questions you may have about the laws affecting juveniles or any legal interpretations.