Police in a Global Culture

English is the lingua franca of Earth. Just about anywhere you go, important information will be in English, certainly in cities where visitors are common.  It is a fact of history and sociology that cities attract people. Urbanism is a distinct culture. If you have taken a subway in Boston, you can navigate the Metro in Budapest. So, it is not surprising that the police in Athens are labeled in English. Even if you could read out "Astunomia" you would not want to mistake that for "Astronomia." Of course, few astronomers assemble in ranks with shields and batons. But why do the police in Teheran use English? 

From the Telegraph (UK)
ASTUNOMIA literally means "city management"
but is the modern Greek word for POLICE.

Bulgarian police at subway entrance in Sofia

Korean Police

Teheran
(but it could be anywhere)

PREVIOUSLY ON NECESSARY FACTS
Laissez Faire Criminology
Junk Criminology as Pseudo-Science
Shifting the Paradigm of Private Security
Employee Theft