Art. 643 Order for mental examination

If a judge has good reason to think a defendant might not be mentally able to understand the court process or help with their own defense, the judge must order a mental examination. This isn't optional once that doubt exists. The exam is meant to figure out whether the person can actually participate in their case in a meaningful way.

Before this exam can happen, the defendant needs to have a lawyer. If they don't already have one, the court has to appoint one first. This makes sure someone is looking out for the defendant's interests before any mental evaluation takes place.

In short, this rule protects people who may not be mentally fit to stand trial. It requires the court to act on any real concerns about a defendant's mental state, and it guarantees legal representation before that process starts.