“Maybe there are others. But I can think of only one reason why it would be cool to bust down a door: It’s a hostage situation, and the bad guys have made a credible threat to kill a hostage.
Otherwise, wait ‘em out. Or grab them up when they go out for a Big Mac. Or fire a tear gas round through the window. But don’t be crashing through doors unless you really, really have to.”
No more no-knock except in the situations that you describe. It’s a permitted tactic that police have abused.
Warrants aren’t needed when there is imminent threat to life (hostage situation, someone screaming help murder, etc.). That’s fine. Its the no knock arrest or search warrants I object to.