Crossword Challenge

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Across
  1. 4. Computer system used by An Garda Síochána (5)
  2. 5. Dishevelled US TV detective (7)
  3. 6. Crime of betraying your country (7)
  4. 7. Recently reopened Garda station in south Dublin (9)
  5. 9. Old nickname for Dublin Metropolitan Police (6)
  6. 13. An Garda Síochána have two of these for aerial surveillance (11)
  7. 15. Roadside block by gardaí (10)
  8. 18. Written statement used as evidence in court (9)
  9. 19. Organisation for worldwide police cooperation (8)
  10. 20. This technology was first used in a Dublin court in April (5)
  11. 21. Organisation investigating complaints against An Garda Síochána (4)
  12. 22. New Acting Assistant Commissioner, Pat (6)
  13. 23. Lying under oath (7)
Down
  1. 1. Crime of killing without malice aforethought (12)
  2. 2. New Criminal Assets Bureau Chief, Michael (7)
  3. 3. Synonym for prison inmate (5,2,3,5)
  4. 8. Name of current pandemic (11)
  5. 10. Crime of taking someone's belongings by force (7)
  6. 11. Free somebody from a criminal charge via a not guilty verdict (6)
  7. 12. Obtaining money through force or threat (9)
  8. 14. Old nickname for London's Flying Squad (7)
  9. 16. Financially-driven, non-violent type of crime (5,6)
  10. 17. Repeat offender (10)