Don't want to F with a trial. It's harder than people think to get a jury to give a unanimous vote, which is needed for a felony conviction. You attempt to come out to a happy medium. It's the prosecutors risk that they may lose vs. the defendant's desire to not lose and possibly get a max sentence vs. the interest of justice for the victim When I was a prosecutor, the best leverage was to basically say "look, if this goes to trial and you lose, then the judge is probably going to sentence you to a much, much greater sentence than you would from us if you just accept the plea." Plea deals can be good and bad. I think they are troubling sometimes because if the defendant doesn't accept a plea, then the state is basically punishing a defendant for exercising their constitutional right to a trial when it comes to sentencing. That's not always the case, but some judges are real hardasses.