2013 的時候提過「加州的手機防竊提案...」，後來在 2015 年生效：
In a press release sent to reporters on Thursday, George Gascón said that since the law went into effect on July 1, 2015[,]
Such a kill switch has become standard in all iPhones ("Activation Lock") and Android phones ("Device Protection") since 2015.
而執行到現在已經兩年了，手機的失竊率下降不少：「San Francisco DA: Anti-theft law results in huge drop in stolen phones」。
[S]martphone-related robberies have fallen 22 percent from 2015 to 2016. When measured from the peak in 2013, "overall robberies involving smartphones have declined an astonishing 50 percent."