[freeandfreezing]

And the instant the door is smashed in, those cars should have to turn on their lights and sirens.

It is too late by then. At that point the gunfight is on. I doubt anybody in that house could have heard a siren outside after a 12 gauge shotgun round or two and a volley of .357 magnum rounds.

There is little need for dramatic door breaching raids unless it is to save hostages, or stop a mass murderer in action -- except of course when somebody is shooting up a country music festival in Las Vegas when nobody bothered to breach the door -- so the police should just arrange a safer way to apprehend suspected drug dealers.

[MileHi]

It is too late by then. At that point the gunfight is on. I doubt anybody in that house could have heard a siren outside after a 12 gauge shotgun round or two and a volley of .357 magnum rounds.

Right. At that point loud sirens and flashing lights just add to the surreal scene that unknown people just broke down your door to kill you.