Related Clues:

• Stop order?
• Suspension
• Call off
• Old-fashioned police cry
• Sentry's order
• 'Don't come any closer!'
• Company command
• Sentry's command
• 'Don't take another step!'
• Desist
• Standstill
• Stop progress
• Arrest
• It's followed by ''Who goes there?''
• 'Freeze!'