Problem is that theory very commonly doesn't match reality when dealing with humans.
Police may prefer to suppress freedom to achieve its goal, which is crime reduction. Or it may stop caring about difficult or dangerous problems (say, drug dealing cartels), and reorient into harassing the civilian population for petty things, such as policing distasteful memes on the internet.
Police may prefer to suppress freedom to achieve its goal, which is crime reduction. Or it may stop caring about difficult or dangerous problems (say, drug dealing cartels), and reorient into harassing the civilian population for petty things, such as policing distasteful memes on the internet.