若犯下严重罪行，移民应被驱逐出境吗？

In 2015 the U.S. House of Representatives introduced the Establishing Mandatory Minimums for Illegal Reentry Act of 2015 (Kate’s Law.) The law was introduced after San Francisco 32 year old San Francisco resident Kathryn Steinle was shot and killed by Juan Francisco Lopez-Sanchez on July 1, 2015. Lopez-Sanchez was an illegal immigrant from Mexico who had been deported on five separate occasions since 1991 and been charged with seven felony convictions. Since 1991 Lopez-Sanchez had been charged with seven felony convictions and deported five times by the U.S. Immigration and Naturaliza…  tion Service. Although Lopez-Sanchez had several outstanding warrants in 2015 authorities were unable to deport him due to San Francisco’s sanctuary city policy which prevents law enforcement officials from questioning a resident’s immigration status. Proponents of sanctuary city laws argue that they enable illegal immigrants to report crimes without the fear of being reported. Opponents argue that sanctuary city laws provide encourage illegal immigration and prevent law enforcement authorities from detaining and deporting criminals.