From The American Conservative:

Such killings would likely not occur without the sense of impunity conferred on police in much of this nation. Sen. Amy Klobuchar, a top contender for Vice President candidacy for Joe Biden, was the chief prosecutor for Hennepin County (including Minneapolis) from 1998 to 2006. Klobuchar, who was nicknamed “KloboCop” by detractors,  “declined to bring charges in more than two dozen cases in which people were killed in encounters with police” while she “aggressively prosecuted smaller offenses” by private citizens, the Washington Post noted. Her record was aptly summarized by a headline early this year from the Twin Cities Pioneer Press: “Klobuchar ramped up prosecutions, except in cases against police.”  

Minnesota cops also benefit from their state’s so-called “police officer’s bill of rights,” which impede investigations into killings by police and other misconduct.