Driving a certain type of truck doesn't necessarily mean that you are robbing banks but LE are still going to check DMV records to see who all owns that sort of truck in a certain area, if a certain type of truck is spotted at a bunch of bank robberies. You guys entirely miss the distinction between intelligence and concrete evidence. Intelligence narrows in on evidence and usually it isn't even brought up in court, although you can find examples of it in case studies. We should have an intelligence forum to post case studies in, for all types of crime (since the general techniques hold true between all sorts of crime, even if the implementation details change). Stop missing the forest for the trees.