Related Clues:

• Jockey's aid
• ''Gang Busters'' character
• Unit of force?
• Radar gun aimer
• Back (out)
• FBI agt.
• Bureau employee
• 54 Across participant
• One not missing a beat?
• One whose tickets are often expensive
• Dillinger chaser
• Hoover employee
• Worker with a beat
• FBI employee, slangily
• One may direct traffic