The Board of Supervisors voted unanimously on Tuesday for a measure that clarifies when city workers, including police officers, can notify Immigration and Customs Enforcement of a person's immigration status. The measure, however, also grants San Francisco's sheriff leeway to contact immigration authorities in the limited cases of defendants charged with a felony if they have been convicted of other felonies in the past. The killing of Kate Steinle in July 2015 and the arrest of Juan Francisco Lopez-Sanchez put San Francisco's leaders on the defensive as critics and outside politicians, including presumptive GOP presidential nominee Donald Trump, called for a change in the city's sanctuary law. The ordinance allows the sheriff to share release information with ICE if the person is charged with a felony and has been convicted of one serious felony or convicted of three other qualifying felonies within the previous five years.