The San Francisco District Attorney’s Office has announced it will expunge thousands of misdemeanor convictions for marijuana possession dating back to 1975. The move comes after recreational marijuana use was legalized in California this year. That paved the way to have previous low-level offenses dropped, but it required a costly petition process that San Francisco authorities have decided to bypass. George Gascón, the city’s district attorney, said his office will automatically erase about 3,000 convictions, while an additional 4,900 felony convictions will be reviewed to determine if they can be downgraded to misdemeanor charges. “A lot of people don’t even know they qualify, and I don’t think it’s the right thing to do to make people pay lawyers’ fees and jump through a bunch of hoops to get something they should be getting anyway,” Gascón told The New York Times. San Diego has also said it will forgive previous convictions, having identified about 4,700 that will either be wiped out or downgraded.