Which organization serves as a global police cooperation agency?

The correct answer is INTERPOL, which stands for the International Criminal Police Organization. INTERPOL serves as a global police cooperation agency by facilitating collaboration and communication among law enforcement agencies from its member countries. Its primary functions include sharing information regarding criminal activities, providing support in investigations, and facilitating the exchange of resources and expertise.

INTERPOL's global reach allows it to address transnational crime effectively, which includes issues like human trafficking, drug smuggling, and cybercrime. This organization plays a crucial role in promoting international safety and security through cooperation and information sharing among police entities worldwide.

The other organizations listed, such as INS (Immigration and Naturalization Service), IO (International Organization), and IRS (Internal Revenue Service), do not function as global policing agencies. INS primarily handled immigration and naturalization matters in the U.S. until it was dissolved, while the IRS focuses on tax collection and enforcement within the United States. The term IO is too vague to directly refer to a specific organization relevant to global policing.