Under Civil Asset Forfeiture Laws, police and prosecutors can seize one's property - cars, cash, even homes - without even charging them with a crime. Items are often sold to fund agency budgets. (See Wikipidia link for states actively involved.)
In 1972, 350,000 Americans were imprisoned. In 2013, this number had grown to over 1.57 million. The US has less than 5 percent of the world's population, but it has almost a quarter of the world's prisoners.
Local police doctrine now dictates that public protests be treated as 'security threats'. That means peaceful demonstrations will be treated like prison riots. The doctrine allows wide latitude for abuse against citizens.