From StrategyWiki, the video game walkthrough and strategy guide wiki
As with previous games in the series, you don't need to learn about the real-life court system to get any ideas of what to expect. This game pretty much speaks for itself. Nearly every case runs over two days. Your goal in each case is to find the truth that will help you save your clients. If you mess up too much, they'll be found guilty, and it's GAME OVER!