It certainly wasn't the classiest way to state his point but whenever I read about the police chiefs uniting with support for the registry, I always think of the point he just made.
If they want to pay a visit to a small house in a nice neighborhood and look up the registry and it says the guy owns a hunting rifle, are they going to send in a SWAT team to speak to him?And if they want to execute a warrent on a couple of known gangmembers in some sketchy neighborhood, and they look it up in the registry and it shows the person doesn't have a firearm registered, are they just gonna leave their sidearms in the car?
So really, what does the registry change for them?