For the longest time, very few people did cocaine in Australia. The drug was available, but only as a low-quality novelty for the rich, and only in small amounts.
“It was very, very, very poor quality," says Paul Dillon, the founder and director of Drug and Alcohol Research and Training Australia and a prominent commentator on Australia’s drug culture. "It was always $200 a gram—you never got it cheaper, you never got it more expensive, and you certainly only got it for luxury occasions."
By 2015, it wasn’t just the supply of cocaine that had changed, but also the means of domestic distribution. Australians were traditionally used to meeting their drug dealers in car parks and public gardens—but in Sydney, a new and more efficient program of home delivery sprung up. Delivering cocaine to a buyer’s home via car slowly became the norm. And the scale of these new domestic operations was revealed when, in 2015, police executed an operation codenamed “Morti.”
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https://www.vice.com/en_us/article/4ayxwg/how-sydney-became-australias-cocaine-capital 