From the report: The Humphrey decision has the potential to dramatically change pretrial justice in California. In San Francisco, the decision shifted how people charged with a new crime were released during the pretrial period, with bail being used less frequently and releases to the most intensive forms of supervision being used more often. There was little effect on the overall jail population in San Francisco. San Francisco is different from the 57 other counties that are now required to adhere to the Humphrey ruling. The county already had robust pretrial services in place and a multi-agency commitment to decrease pretrial detention. This was matched with additional investment to expand the most intensive supervision options after the 2018 Humphrey decision took effect. Despite these possible differences, the San Francisco experience is instructive as other counties grapple with how they will adhere to the decision.