The "crook quotes" were the phrases found under each crook's name in the Dossiers. The quotes were a
type of cryptic clue. You substitute city puzzle answers for words in the clue and follow the resulting
directions found in the clue.

Polly Titian

How many times          one                backwards        political entity has destroyed another,
FREQUENCY               EUROPEAN UNION                      CALIFORNIA

coming back with magic
RETURNING        HEX

= FURNITURE EXCHANGE
(F; EU backwards holds CA, RETURNING, HEX anagrammed)