(Diefenbaker who has ran all the way arrives at a crime scene prior to Fraser and Ray who have taken the car.)
Ray Kowalski: How did he beat us?
Benton Fraser: He must have taken a shortcut.
Ray Kowalski: He knows shortcuts?
Benton Fraser: He does study maps.
Ray Kowalski: What kind of maps?
Benton Fraser: Road maps, street maps, topographic maps ...