McGarrett in “Unfinished Business”

[to Danno] Well, if there is anything else, you better remember it. A cop pulls his gun, he better remember every single detail. There's always trouble when you pull a gun, more if you fire it. You hit somebody, and you're up to your hip pockets in it. And if a cop kills somebody, every single fact better jive or he gets nailed to the wall. He's guilty until he proves himself innocent. Now that's backwards, ugly and unfair but that's the way it is.