Bleak scenes are played out every day in the centre of this city, where a world of addiction and despair exists alongside the shoppers, tourists and office workers on their lunch breaks.

There's also human faeces and urine soaked walls where those with no dignity have given in to the urgency of addiction.

Bleak scenes are played out every day in the centre of this city, where a world of addiction and despair exists alongside the shoppers, tourists and office workers on their lunch…