Related Clues:

• Roadblock demand
• Stop suddenly
• Stop order
• 'Stop right there!'
• Sentryâs directive
• Msg. sent to squad cars
• P.D. alert
• Drill shout
• Possible start of a dragnet, in brief
• Stop!
• Terminate
• Alert to squad cars, briefly
• It's followed by "Who goes there?"
• "Freeze!"
• Pause