I want to be a police officer.
Usually, "police officer" is a generic term that doesn't specify rank.
What do you mean by rank?
Some countries use "officer" reserved only for military personnel.
Which countries do that?
Nordic countries
The Nordic countries or the Nordics are a geographical and cultural region in Northern Europe and the North Atlantic, where they are most commonly known as "Norden" (literally "the North"). The term includes Denmark, Finland, Iceland, Norway, and Sweden, as well as Greenland and the Faroe Islands—which are both part of the Kingdom of Denmark—and the Åland Islands and Svalbard archipelagos that belong to Finland and Norway respectively, whereas the Norwegian Antarctic territories are often not considered a part
Police officer
A police officer, also known as an officer, policeman, policewoman, cop/copper, garda, police agent, or a police employee is a warranted law employee of a police force. In most countries, "police officer" is a generic term not specifying a particular rank. In some, the use of the rank "officer" is legally reserved for military personnel.
Police officers are generally charged with the apprehension of criminals and the prevention and detection of crime, protection and assistance of the