Former San Francisco Chief of Police George Gascón is sworn in as District Attorney following his win in the November election. The first Latino to hold the office in San Francisco, he was appointed to the position a year ago by former Mayor Gavin Newsom when Kamala Harris was elected attorney general. Gascón discusses his philosophies on law enforcement, the impact of prison realignment and California's three-strikes sentencing law, and high school truancy programs to keep youth out of the system. He has pledged to make San Francisco the safest large city in the country.