If you are charged with a crime in Japan and brought to trial, statistics show that there is a 99 percent chance that you will be convicted. This alarming statistic reveals the highly dysfunctional legal system from which the Ace Attorney series clearly takes its inspiration; a system where even a victim of false allegations finds it impossible to escape conviction.
Wait a minute, before we start misleading people with the statistics. The high percentage could simply refer to the fact that police do not trial individuals unless they are sure they have compiled enough evidence to guarantee a conviction. Whilst other countries do not have a percentage as high, the police in most countries will try to avoid expensive trials as much as possible unless tehy have everything they need to prove the defendant is guilty beyond reasonable doubt. If at the end of a trial, someone is found innocent, it means the police investigation and criminal process has been a waste of money (they were chasing the wrong guys and they could have spent that money persuing real criminals).