A lot of headlines lately have gotten my blood pressure up. And this is bad because I already have high blood pressure.
I would think that the police know that when they go crashing through a door there is a great possibility of gunfire breaking out. The fact is, they do know this, there fore they are on edge already and some slight little something could set them (the police) off. A heavy book dropped and someone thinks a gun has been fired and they start shooting at shadows. It don't matter what is in that shadow just shoot it cause it moved.
Also they really never know who or what is in the structure they are raiding. Could be a deaf person. A skittish person that thinks they are being robbed or something. They think their life is in jeopardy, and they do have the right to defend themselves. So they grab a gun and get mowed down.
This is even worse when the cops raided the wrong place.
Now here is the justification for doing the raids the way they do.
THEY MAY FLUSH THE DRUGS.
If they (the bad guy) has a chance he will get rid of the evidence. And given enough time could arm himself and fire on the cops.
Pull out the scales folks. On one side place the drugs that might get flushed. On the other side place the lives that could be lost. (that being bad guy, good guy, woman holding a baby.)