You are members of a jury. Vote to choose a Foreman - they will speak first and read the record. The Foreman starts by reminding everyone of the defendant's name and alleged crime.
Everyone then takes a turn reminding the other jurors of a fact from the trial. State your fact and roll 2d6.
On a 10+, your fact is part of the record. Write it down.
On a 7-9, write it down and choose one:
*The judge instructed jurors to ignore it – tell us why and cross it out.
*You forgot an important detail – the juror to your left adds the extra detail to the record.
*There was contradictory evidence offered by the other side – the juror to your right explains and writes it down.
On a 6-, write it down and then the jurors on your right and left each choose one of the above.
After every juror has had a turn, the first to speak reads the record and everyone votes - Guilty or Not Guilty. A unanimous vote is required for a decision. If a vote isn't decisive, begin a new round. After the third round, if there is no decision, the jury is hung.
The community over at https://www.reddit.com/r/RPGdesign/ have been a great help to me as a designer, both as a part of this contest and on other projects.
For this game in particular, I want to thank /u/lukehawksbee for giving some excellent feedback and suggestions that I think led to a few significant improvements over the original version I wrote.