Terrorist organisations and organised crime need financing – to maintain their criminal networks, to recruit and supply, and to commit terrorist acts themselves. Money laundering allows criminal organisations to benefit from their illegal activities and maintain their operations. In essence, money laundering uses the earnings generated through a multitude of illegal cross-border activities – such as drug trafficking, trafficking in human beings, illicit arms trafficking and corruption – to acquire, convert or transfer property, while hiding the true nature of its origin, in order to use the revenues of these crimes in the legitimate economy. A strengthened criminal response to money laundering contributes to cutting off sources of finance and countering the financial incentives which drive crime, making a powerful contribution to the fight against terrorism and organised crime.