Detective

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Across
  1. 3. Material or information used to prove something.
  2. 5. An illegal act punishable by law.
  3. 6. A specific investigation or legal matter.
  4. 8. A period of secret observation of a location or person.
  5. 9. The practice of spying or using spies.
  6. 14. Something that is difficult or impossible to explain.
  7. 15. Secret or hidden, not openly acknowledged.
  8. 16. To question someone closely, aggressively, or formally.
  9. 17. An excuse or piece of evidence to prove one's innocence.
  10. 18. Close observation, especially of a suspected spy or criminal.
Down
  1. 1. Working secretly to avoid detection...... Convert to crosswords
  2. 2. Someone who sees an event, typically a crime, happen.
  3. 4. Disguised or concealed identity.
  4. 5. Pieces of information that help solve a mystery.
  5. 7. The process of reasoning to reach a conclusion.
  6. 10. Famous fictional detective created by Arthur Conan Doyle.
  7. 11. Another term for a detective, often used in fiction.
  8. 12. The application of scientific methods to solve crimes.
  9. 13. A person who investigates crimes.
  10. 14. A tool used to enlarge small details.