AI in the court: When algorithms rule on jail time

It sounds very good in theory, but what about in actual practice? I've done enough computer programming as well as architected computer applications for other programmers to code, to realize that creating the AI is the easy part. At some point, data must be introduced for the program to digest and spit out a decision. Thus, instead of a trained jurist sorting through the chaff of a person's life to make a decision, we entrust a marginally trained data input operator to make judgments of what should be considered and what shouldn't. The result? Garbage in, garbage out...