I'm sure there's a relationship between "clearance rates" and "conviction rates," and I guess if his system works, then the system works.
But I'm uncomfortable with the notion that a mere clearance (meaning an arrest) is a "good thing" in terms of crime-solving statistics. To me, it suggests the idea that arresting people is the end game, regardless of ultimate conviction.
I realize he's generating "pointers" to people who've possibly commtted similar crimes, but somehow the line in that old movie rings a bell: "Round up the usual suspects."
Terry, 230RN