RELATED: 2 pedestrians killed in hit-and-run in SF on New Year's Eve
She had a strong message for criminals.
"When you come to San Francisco with the expectation to harm somebody here in this city, there will be consequences. So really don't come to our city with all that bulls**t because we're not having it."
The changes would include police notifying the District Attorney when a person is repeatedly arrested, and closer monitoring of repeat offenders.
RELATED: Efforts to recall SF DA after parolee suspected of double hit-and-run on NYE
Mayor Breed also announced the city would be getting $1.5 million over the next three years to prevent gun violence.
This announcement follows several high-profile crimes, including a New Year's Eve crash that left two pedestrians dead South of Market.
The accused driver was a parolee who police say was speeding away from another crime in a stolen car.
EXCLUSIVE: Silicon Valley investor takes aim at DA Chesa Boudin after SF home burglarized by parolee