Ah there's the answer I wanted
Birthday suit.
How are you not getting paid for this? Time isn't free.
If you can't be bothered to even put on a tie why should the judge/jury assume your haven't been lazy in your medical work as well? If you are going to expect people to respect you as a professional, dressing appropriately is part of the equation.
I'd recommend a suit. The more professional you look, the more credible your opinion. It's just human nature. With the judges in robes and attorneys in suits, you won't feel overdressed.
I worked for a Public Defender one summer. They told me that they used to advise their clients to wear their best outfits for court. After they got people dressing up in hot nightclub outfits, they switched to telling their clients to dress like they were going to church.
If you can't be bothered to even put on a tie why should the judge/jury assume your haven't been lazy in your medical work as well? If you are going to expect people to respect you as a professional, dressing appropriately is part of the equation.