For years, the conversation around problem drug use in Ireland centred on heroin. But on the streets of Dublin and beyond, a different drug has taken hold. Treatment demand for crack cocaine rose by 31% in a single year - and by more than 900% over the last decade - according to the latest figures from the Health Research Board. Those working on the frontline say the drug's cheap price and sheer availability are driving the increase, with a single rock selling for as little as €10. But behind the statistics are people, and the question of how someone caught in the grip of one of the most addictive drugs out there finds their way back out. Dawn Russell, chief executive of Ana Liffey, one of Ireland's leading harm reduction organisations, joins us to explain what's driving the surge, and what recovery actually looks like.