From Playboy:

In a policy paper published earlier this year entitled “Equip Police More Like Batman and Less Like G.I. Joe,” Iraq War veteran and former police officer Arthur Rizer argued that giving cops military style clothes and equipment makes them think like and act like warriors instead of police. Some veterans have become increasingly outspoken about what they see as an infatuation with military equipment by people who they argue are trying to look tough rather than actually use it practically—whether that be police departments, militia groups or former White House officials.