Unlike many of the posters in this thread, government authorities usually have a basic understanding of the law.
Might be something to do with the fact that the government takes and spends the taxpayers money (endless bucket of incoming cash flow) on some of the most brilliant, shrewd and educated legal entities out there, so of course they have a highly trained legal advisory service(s). That is the first reason, the second reason is that they need all that well educated firepower to thoroughly crush the little man into oblivion. David vs Goliath is not just a fairytale, it is the modern day ethos of a so-called democratic society.