It seems to me that most of the issues are a result of the jury system, where people feel that the defendant is guilty or not.

There was an example at the end where a witness claims she saw the defentant at the crime scene. Her testimony would have been ignored because it is so unsupported.

But if the defendant stated to the police that he wasn't there, he could be accused of lying and thus be more likely to be convicted.

To me, this just doesn't make sense.