I was a witness. Guy called for a jury trial. I testified before the jury. I was thanked and outside i was told the guy's lawyer ended up changing the plea right then and there. Cambridge, Middlesex County Court.
---
side bar: If he had asked for a trial by a Judge, maybe the Judge would have went easier on him then he did (guy had priors and was in violation of parole/probation during arrest). The guy wasted everyone's time.
If you go for a trial by judge, then the issue of whether or not the "finder of fact" sees a "reasonable doubt" is decided by just one person.
By contrast, if you take a jury of your peers (at least in a felony trial), then ANY one of twelve sticking to a determination of "reasonable doubt" can prevent a conviction.
If you are charged with a crime, the jury is supposed to determine whether the government proves it beyond a reasonable doubt based on the
evidence that you did it. Very often, the question of a guy's prior criminal record shouldn't even be HEARD by the jury since it can lead to the invalid (illogical) conclusion that "once a criminal, always a criminal." It would be a miscarriage of justice to convict a guy who didn't commit the crime (and whom the evidence doesn't really prove guilty) merely because he used to commit crimes.