police officers

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Across
  1. 3. what do police officers drive?
  2. 5. what do they use to communicate?
  3. 6. what do they use to write notes?
  4. 7. the place where a crime was commited
  5. 8. a person who breaks the law
  6. 9. what does every police officers have?
Down
  1. 1. a loud sound on a police car?
  2. 2. where do criminals go?
  3. 3. synonym of police officer
  4. 4. a person who investigate