At the jail here, you mainly just have to cover up. No halter tops, no short shorts, no mini skirts, nothing see-through. Dress conservatively and you should be fine. They made us leave our purses in our cars and we had to take our shoes off in front of a guard so they could see we weren't sneaking anything in, and they did the metal detector wand on us. I think that was about it. It wasn't scary or anything. You will be fine.
I hope you will enjoy your visit with him. I know he will be glad to see you.
Babs