Seems like "no-knock" warrants are pretty dangerous. I mean, any state that adheres to the castle doctrine and allows no knock warrants is setting its police and citizens up for a lot of sticky situations.
If someone kicks my door down without identifying themselves as police first are getting shot. When that ends up being the police, who is at fault? Me for shooting at a police officer while obeying my constitutionally guaranteed right to self defense. or the law enforcement agency for putting them in the position?