You now there is more to this when they hold in jail an elected state representative.
Need to make some popcorn
In which case it needs to be handled like any other tool in a carry on bag. "Sir / Ma'am, those aren't allowed as carry on, you will need to go secure it in your car."There was no "intent"...
"9mm loaded with 4 bullets.."
If you are going to carry it, at least fill it up. Even a 9mm snubby holds more than that.