A Law Enforcement Officer. They may be a Police Officer, Sheriff, Marshall, Constable, Agent or- a very old term- Conservator of the Peace.
A Counter person.
The person who orders an item is typically referred to as a "buyer" or "customer." In a business context, they may also be called a "purchaser" or "client," depending on the nature of the transaction.
A person who steals clothes from public bathroom is a theif.
The person is known as a vandal.
Canidate
a polictian
The person who enters purchase orders is typically referred to as a Purchasing Agent or Purchasing Clerk. Their responsibilities often include processing purchase orders, ensuring accuracy in orders, and maintaining records of purchases. In some organizations, this role might also be included under titles like Procurement Specialist or Buyer.
The word would be boss, or superior.
vandal
A Vendor
A person who studies public epidemics is called an epidemiologist. They investigate patterns and causes of diseases in populations to help prevent and control outbreaks.
A person who doesn't like publicity is often referred to as a private person or someone who values their privacy. They may also be described as introverted or reclusive, as they prefer to stay out of the spotlight and avoid public attention. Such individuals typically seek to maintain a low profile and enjoy a more secluded lifestyle.