Physical evidence crossword

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Across
  1. 2. Matching glass characteristics
  2. 4. Formulated the basic principle of forensic science
  3. 5. GSR
  4. 6. Example of a "class" characteristic
  5. 7. 3 main types of fingerprints
Down
  1. 1. AFIS
  2. 3. Matching bombs to suspects