Police unions have always been outliers among organized labor, and there are many reasons why the Industrial Workers of the World (IWW) union has long refused to allow cops (and prison guards) into its organization. […] Actually, police unions themselves used to be illegal, because local governments worried about the consequences of allowing armed state agents to organize. And historically speaking, the police have been no friend to workers, whether officers were shooting at the families of coal miners during the Battle of Blair Mountain, crushing the ribs of immigrant garment workers during the Uprising of the 20,000, or teargassing working-class protesters in Minneapolis after police killed George Floyd.
Teen Vogue (I know, right?): Police Unions: What to Know and Why They Don’t Belong in the Labor Movement