How about police and judicial system? In my opinion it's very expensive and and should be shut down immediately. By maintaining public police force government actually steals from it's citizens. Only private police and militaries should be allowed.
Private police?
That sounds like it would quickly grow into a wide conflict of the biggest forces for power and complete reign over the territory, most likely resulting into a dictatorship
and if that private police and military are corrupt or their owner has a different thjinking that the government top, things might get ugly.