Today the favelas are more peaceful, but – with the support of the radiocommunications network – there remains much to do. “The numbers of deaths, the ratio, is going down to a more normal level”, he adds. “But we understand that it is not a common use of police.

“Sometimes you are on a beach with beautiful girls, sometimes you are with an old woman or helping children – and other times you are on Omaha Beach during D-Day, with rockets and bombs and grenades and shooting. After some minutes you are OK and you are going into Rio de Janeiro again. You go home and your family is waiting for you, children, dogs and your wife.

“Sometimes we go to the cemetery for our friends, maybe every month... many times, more than once. We are Brazilians and we like to play and to joke, but our responsibility for many lives is a weight on our shoulders of many tons.

“So we expect that this system will help our people to be safe – to stay alive.”