The Worcester, MA courthouse doesn't allow cell phones. Sometimes I have been able to get through the security area with a needle and a seam ripper (in place of scissors) to do my hand sewing but sometimes they confiscate them. Must depend on who is checking your stuff.
I do foster care so I spend lots of time just waiting around in the juvenile section of the courthouse, depending on the situation. I bring a few magazines or books just in case, though.
Once I had a screwdriver, from my purse, confiscated. I forgot it was in there...I keep it in there in case I come across a vintage sewing machine that needs to come out of it's cabinet before I bring it home...lol.