The document summarizes the origins and development of Dutch cannabis policy from the 1970s to the present. Key events included the recommendations of committees in the late 1960s and early 1970s to decriminalize cannabis, the introduction of heroin in 1972 which led to stricter drug laws, and the rise of coffee shops in the 1970s-1980s which established a system of toleration for soft drugs like cannabis. The coffee shop system developed pragmatically rather than through a formal policy and expectations of legalization were not met. Over time coffee shops faced some regulation to address issues like advertising, hard drugs, nuisances, and minors.