"Popo" can be a colloquial or slang term for the police in certain Spanish-speaking countries, particularly in Mexico. It is similar to how "pigs" or "cops" might be used in English.
Police
Cops popo
police
the police
Depends where in Scotland you are from. In Aberdeen some people call them bobbies or just police
The term "popo" is a colloquial term for police that originated in Mexican Spanish. It is derived from the word "policía" and is commonly used in informal conversations or among certain social groups.
It is called Cops.
Hearst
Popo! Popo! What does it mean? Why I don't know. What is popo? no one knows. Except popo.
The common slang term is "Narc."
Yes - according to Wiktionary, it is UK slang for a police station, or prison.