Cezzna, thanks for sharing.
I didn't know this one. In the link below, you'll find a similar one, but older:
They're basic saying the same thing: "i'm gonna go into the wing, i'm gonna hit the wing" !
It may not be the most smart technique, but it's been effective.
Regarding the video dustoff17 shared, i must say that, as a brazilian, i'm not proud of our police acting this way...
BUT... dealing with drug dealers here is not easy. Policeman are not equipped properly, their salaries is crappy that they're neighbors with the dealers in the favelas, and the laws seem to work against the law enforcement officers. It's hard to see people fighting the bureaucracy, the corruption and etc. And, in this specific case, the pilot of the helicopter had the guts of coming into public, through the TV show with the biggest audience in the week (Globo's "Fantastico") to back up the operation as legitimate.
Of course we should be worried about the civilians, but no complains were filled in the days following that operation by the civilians in the area. If you count how many families were destroyed (and would be) by that dealer, i think (personal opinion here, but from someone who has a better view on this matter that non-brazilians) that the risk was worth the operation.
Just my 0.02