Good writing is good writing. It doesn’t matter if you’re writing the Great American Novel, a non-fiction work you’re sure will be the next best-seller, or an opening statement.
Good writing is good writing, and it starts from a simple premise. Organize your thoughts before you put pen to paper, or fingers to keyboard.
A solid opening statement should have no more than three key points you absolutely want to convey to your jurors. Each key point should be easily captured in one short sentence. You can elaborate to your heart’s content following that key point, but in order for your jurors to comprehend your elaborations, you must provide that point. It is called a “key” point for a reason. It provides the key to your ensuing arguments.
Why three key points, tops? Because three points is the number of points most easily retained by the human mind. You need the jurors to retain your points! The sequence of said points is simple. The most critical should be stated first, and the second most important stated last. Whatever is in the middle (unfortunately) may end up forgotten.