Here's additional information on writing opening statements, taken directly from the mock trial rules handbook.
1. OPENING STATEMENTS: The objective of the opening statement is to acquaint the
judge and the jury with the case and to outline what you are going to prove through witness
testimony and the admission of evidence. Include a short summary of the facts; mention the
burden of proof (the amount of evidence needed to prove a fact) and who has the burden in
this case; the applicable law; a clear and concise overview of the witnesses and physical
evidence that you will present and how each will contribute to proving your case. Remember,
it is essential that you appear confident in your case. Stand before the jury and use eye
contact. Students may move about to facilitate expression.