How much control does a communist country have over the lives of people?

There isn't much difference between communist and other government types in the control of citizens' lives.All of them have rules on:

• marriage
  
• taxes
  
• monitoring of private communication
  
• control of immigrations and travel
  
• identity documents
  
• public display
  
• secretive police action
  
• public statements
  
• contact with government officials