According to the search results, "white whale" has different meanings depending on the context. It can refer to:

• Operation White Whale: This is the codename given by Interpol and EUROPOL for an international money laundering operation near Costa del Sol, Kingdom of Spain.

• A difficult opponent or nemesis: In this context, "white whale" is used to describe an opponent or nemesis who is extremely difficult to defeat.

• An obsession: "White whale" can also refer to an activity or thing that an individual obsesses over and/or is constantly chasing to the point that it becomes dangerous for their health or safety. The term is derived from the story of Moby Dick, where Captain Ahab was obsessed with hunting and killing the white whale, Moby Dick.

• A movie: "The Rookie: A White Whale" is a movie that was released in 2023.

Based on the search results, there is no indication that "white whale police" is a term or concept.