Hoping to hear from those in the drug business, we make one more night time bid to cross the line into Rio's drug controlled favelas, a strong hold of the feared Red Command drug gang. BRISSENDEN: When Foreign Correspondent last visited Rio in 2002, it was a city engulfed in an undeclared civil war. The drug gangs ruled, children were pressed into the trade, murder was matter of fact and fear reigned. DRUG CHILD SOLDIER: [showing his guns] "If this one fails - it jams sometimes - this one doesn't. With this one, all I have to do is pull the trigger". BRISSENDEN: A major turning point came in November last year when the troops moved in. As many as thirty people died in the fight, but the drug gangs were hammered. They used to call this place Rio's Gaza Strip, but through sheer force the State now controls these twisting alleyways and for the residents of this neighbourhood at least, these blue hats represent a sort of new dawn. Father Serafin Fernandes has been the priest at the Penha Igreja Church for the past fourteen years. For much of that time, people from outside the neighbourhood were afraid to come to mass. FATHER FERNANDES: "Much has changed for the better - especially because of the pacification operations. They brought peace to the population and rescued people's self esteem". BRISSENDEN: Filming here without permission from the drug bosses would have been impossible. That's no longer the case. The peace is