At what point did you deem that appropriate?

So last week I was at a three day training on drug laws. It was not required to wear your uniform during this. My department has a strict policy about what you wear to training. Business casual. Period. Don't ever let a supervisor hear about you or see you in a t shirt, jeans, tennis shoes or other inappropriate items.
Enter the other people. First of all as a female in law enforcement I am hyper aware of how I dress. I don't want people to think I'm a skank, a badge bunny or an idiot. Apparently the other six women didn't get that message. I had to tell one well endowed girl to pull up her shirt, because parts of her anatomy were showing that were illegal. Two others had pants so tight I thought they'd split when they sat down. At least one had inappropriate undergarments that showed through. I did not see one female with a shirt that my supervisor would have approved. Mine would have told me to go home and change, then come back to training and sign my disciplinary action.
Various officers had jeans, t shirts with sports teams and other random things on.
People please. Khakis, polo shirt. Write it down.