prison security crossword puzzle

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Across
  1. 1. Type of camera used for surveillance
  2. 3. A scheduled event for checking inmates
  3. 6. A common method to restrict inmate movement
  4. 9. Technology used to track movement
Down
  1. 1. A high-security area within a prison
  2. 2. a person imprisoned
  3. 4. The highest level of prison security
  4. 5. Guards use this to maintain order
  5. 7. A unit used to isolate violent inmates
  6. 8. The outermost barrier of a prison