Which organization maintains public order?

We cannot live without any police department.

I'm scared of police

my First Cousin Is a Garda.An Irish Police officer.

not in South africa. here, the police are the biggest criminals hiding behind their uniform.

Yep, the NYPD, London Metropolitan Police, Scotland Yard, Surete Nationale, French Gendarmerie, RCMP, Politie, Politi Kobenhavns and many others are notable examples of police forces...