It's called Rules of Engagement "creep."
I once took part in a small "Brush War" where our starting Rules of Engagement were, "If you feel threatened, shoot." These initial Rules of Engagement soon changed to, "If you are shot at, you can return fire." As that meant when we met the enemy we had to give him the first shot, and I thought the rules couldn't get any worse than that, but they did.
Just Before we were pulled out of the fracas, the Rules of Engagement were changed to, "You may return fire only if you receive effective fire." This, of course, meant that the enemy not only had to shoot at you but he had to also hit you before you could return fire.
That country is now one of the few Communist States left in the world.
“Creep” could apply to just about all the gov’t rules these days.