From a reader with a link to video.
He writes: "Jump right to the 1:35 - 2:10 footage for the money quotes. Your jaw will hit the deck.
"Emeryville, CA Police Chief Ken James claims it is a myth that guns have a defensive purpose. He says that "Police Officers do not carry a gun as a defensive weapon" and, further, explicitly states that they are carried by officers for offensive use only -- that they use them "to intimidate and to show power."