TASK DEFINITION: You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
PROBLEM: Category: INDIANA 
Clue: Indiana's state motto is "The Crossroads of" this

SOLUTION: america

PROBLEM: Category: FICTIONAL DETECTIVES 
Clue: "The House Without a Key" was the first case solved by this Chinese detective

SOLUTION: charlie chan

PROBLEM: Category: THE BOYS IN BLUE 
Clue: Booking a suspect means entering his or her information into the daily record called the "police" this

SOLUTION:
blotter