The test is simple. They leave a rabbit into the woods and the team who finds the rabbit in the fastest time wins.
Interpol goes first. They go into the forest, hunt for clues, interrogate the animals, set a trap for the rabbit at its favorite watering hole and within a month, they have captured the rabbit!
FBI goes in next. They look for clues for a couple of days, then burn down the entire forest and bring back the charred remains of the rabbit on the third day!
Mumbai police goes after that. In a few hours they come back with a brutally beaten and bloody bear who is shouting “Alright! I’m a rabbit! I’m a fucking rabbit!”