Related Clues:

• Kind of car or dog
• Beat walkers
• New York's finest, e.g.
• Fuzz
• See 81 Down
• 911 responders
• Lawmen
• Keep in order
• Coppers
• Shout before 'Open up!'
• Kind of state or station
• Urban force
• Miranda rights readers
• They can be found in 20- and 55-Across and 10- and 26-Down
• Law enforcement group