No, they're not. But they are the majority of the ones that take place.
When there is a person's life in imminent danger, then you have a good reason to execute a warrant without knocking or showing your warrant.
But if your big concern is that some pot is going to be flushed down the toilet, it's not worth it. And if they're concerned about the dangers of storming the house, they should do a little surveillance and grab the bad guys when they are going about their other business - just like the feds should have at waco.
But some people prefer to suit up and do a dramatic raid to justify their existance rather than nab somebody another way.
LOL@ So you simply jumped on the WOD whine out of instinct?
But some people prefer to suit up and do a dramatic raid to justify their existance rather than nab somebody another way.
It also gives the local chief some good PR. What is better TV, a uniformed officer knocking on a door, or a squad of paramilitary troopers storming a building?