This summary is not the rule. The rule text controls.
When one side in a court case shows part of a document or recording, the other side can ask for more of it to be shown right away. This means if someone reads a few lines from a letter, email, or recorded conversation, the other side can ask that other parts of the same document also get read, if those parts help explain things fairly.
The idea behind this rule is to stop people from taking words out of context. If only part of something is shown, it might make a person or event look different than what really happened. This rule lets the other side fix that by adding the missing pieces right then, instead of waiting until later in the trial.
This also covers related documents or recordings, not just the exact one being used. If another paper or recording is closely connected and needed to understand the full picture, the other side can ask for that too. The goal is to make sure the judge and jury get a complete and honest picture, not just a partial one that could be misleading.
