Shoplifting and other crimes simply being decriminalized.

Shoplifting was never (formally) decriminalized. SFPD stopped bringing anything to the DA because he was investigating and prosecuting police misconduct. Now that the mayor's installed a new DA and the new DA's disbanded the group that investigates police misconduct the police have started bringing more cases forward. Unsurprisingly the new DA is not prosecuting cases at a higher rate.

https://missionlocal.org/2022/08/jenkins-removed-prosecutor-...

https://missionlocal.org/2022/08/narcotics-enforcement-spike...

https://missionlocal.org/2022/07/mayors-office-takes-hands-o...