ok sure, but that is the one thing they should not be lazy about. Not that I'm complaining, just curious.
For the first decade of their career they're really only facing people who will bust them if they're totally stupid and deliver themselves to the authorities practically gift wrapped. Because the flip side of most criminals being lazy is that most police are lazy. But then after a decade they wind up with someone at least mildly competent getting interested in them and they've left traces all over the place.