.... I know the system isn't perfect, but it's not THAT bad. Besides, hiding evidence is not how you prove your innocence. Most screw-ups are on the part of the lawyers - usually when failing to notice an inconsistency that casts doubt on the burden of proof. That's the thing that some people forget about: that if there's room to say that someone didn't commit a crime once the investigation is over, then that person should not be convicted.
In most cases where an innocent person is punished for something they didn't do, it's mainly because they couldn't get a good lawyer and the public defender assigned to them is a bag of ass that couldn't care less about their case, while the plaintiff can afford a good lawyer or the DA is a fucking shark looking for an easy win. Keep in mind, the real shit-show depends on the lawyers and how they present the case to the judge and/or jury, not the investigative team.
In most cases where an innocent person is punished for something they didn't do, it's mainly because they couldn't get a good lawyer and the public defender assigned to them is a bag of ass that couldn't care less about their case, while the plaintiff can afford a good lawyer or the DA is a fucking shark looking for an easy win. Keep in mind, the real shit-show depends on the lawyers and how they present the case to the judge and/or jury, not the investigative team.