San Francisco voters showed strong support for a pair of controversial public safety ballot measure that expand police powers and compel treatment for adult welfare recipients who use illegal drugs, two efforts Mayor London Breed said would crack down on crime and the city's drug crisis.

Proposition E grants police greater leeway to pursue suspects in vehicles, authorizes the use of drones and surveillance cameras and reduces paperwork requirements, including in use-of-force cases. Proposition F makes drug treatment mandatory for adult welfare recipients if they use illicit substances, or else they can be denied cash assistance. ...

“We want people to seek treatment and many people do, but the reality is others are not willing or able to do so,” Breed said in a statement. “We are also sending a message that we are a city that offers help but not a city where you can just come and do whatever you want on our streets.”