I applied online. I interviewed at INTERPOL in Jan 2019
Interview
I was interviewed by three people from the same department. Questions ranged from "What do you know about Interpol" to "How could social changes affect law enforcement". They pay attention to the cover letter as well as your background.
Interview questions [1]
Question 1
What do you know about Interpol? What is your view about social changes and how they would affect law enforcement? Can you tell us the three attributes that better describe you?