On the drive home, I was joking with my buddy about how "Robin" will pick up the mantle of Batman with no training whatsoever.
He flies in, striking terror into the hearts of the enemy... until the thugs gang up on him and beat him to death. "Batman is dead. That was... easy."
Other than the fact that all we see is him go into the batcave and now he has all of those things at his disposal to track criminals and fight them but he doesn't suit up or do anything with it that we know of.
Also, you do have a point. Usually cops don't have any experience fighting crime or hand to hand combat. They don't get trained on that stuff. First couple of years is only about how to eat donuts and drink coffee. The important stuff comes after you've been a 10 year vet.