As California enters its third year of legal recreational cannabis sales, many expect upcoming new laws, high-profile court cases and major criminal justice reforms to shake up the industry.

Marijuana advocates are wary after a challenging second year, but most also are hopeful that changes in 2020 will put them in a better position a year from now.

"We always knew it would be an uphill battle," said Robert Flannery of Dr. Robb Farms, a cannabis cultivation company based in Desert Hot Springs. "But there are very few people who are not generally optimistic about the cannabis industry."

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