Anyone who becomes a criminal defense lawyer knows that most criminal defendants did what they’re accused of. (And most criminal defense lawyers start their careers as prosecutors, to learn the ropes.)
However, the defense lawyer plays a very specific role in the justice system. He’s not the judge or the jury or the prosecutor. The system is designed such that the defense lawyer makes the best possible case for his side (within the rules), and the prosecutor makes the best possible case for his side (within the rules), the judge acts as the gatekeeper of what gets presented to the jury, and the jury (or sometimes the judge) makes the factual findings. If defense lawyers refuse to defend people they believe are guilty, then the lawyers are acting as the judge and jury.
That being said, there are certain rules constraining what defense lawyers can do. For example, if the lawyer has good reason to conclude that his client (or one of his witnesses) is going to lie on the stand, then he’s not permitted to put that person on the stand. If the person is the defendant, he can still insist on addressing the jury, but the judge will typically know what’s going in that situation and either won’t let the defendant speak to the jury at all or will restrict what the defendant can say.
In addition, after the jury has been selected, the defense attorney will need the judge’s permission to withdraw and may be ordered to stay on even though he doesn’t want to.
(I’m a lawyer but not a criminal lawyer. So if there are any criminal lawyers out there, I would welcome (name removed by moderator)ut on the above.)
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