Police

Police
Worldwide police officers that are employed by the World Government to supervise local areas and arrest unlawful citizen. The Marines does more law enforcing the polices.

Jobs
A job of a police is maintain order and would even do the jobs when the Marines are busy or are not around. The were to arrest any criminals and watch over towns or cities. They can act as a spokeperson for any town. They appear to be more fair to citizens then Marines. However they can help the Marines in catching criminals

Ranks
However Oda does not develop them very, it's hard to determined the ranks of polices. Unless Oda gives them more development the ranks

Police in the Series
In Commi Island, there is a Police name Genzo who wore a black suit with golden edges and a black police cap. So far he is the only named police in the series.

In Louge Town there is a man who was yelling at Luffy to get off the excution platform, he wore the same suit as Genzo, there are other police that wore the same suit.

There is a Bounty Hunter in Whiskey Peak that dress up as police.

Even in Water 7, there are two people who wear the same suits while trying to stop Franky's rampage through the city which proves that there are common worldwide police who supervise local areas.