| No. | Item | Definition |
|---|---|---|
| 1. | accomplice | helper in a wrongdoing |
| 2. | affidavit | sworn written statement |
| 3. | alias | false or assumed name |
| 4. | alibi | claimed proof of being elsewhere |
| 5. | analysis | careful examination of evidence |
| 6. | arson | deliberate setting of fire |
| 7. | assault | violent attack or threat |
| 8. | authenticate | prove genuine or valid |
| 9. | background check | review of a person’s history |
| 10. | battery | unlawful physical contact |
| 11. | blackmail | extortion using damaging information |
| 12. | bribery | offering payment for influence |
| 13. | bug | hidden listening device |
| 14. | burglary | illegal entry to commit crime |
| 15. | case | matter under investigation |
| 16. | closed case | investigation considered finished |
| 17. | clue | small sign aiding discovery |
| 18. | co-conspirator | partner in a secret plot |
| 19. | cold case | unsolved case with little activity |
| 20. | conspiracy | secret plan to do wrong |
| 21. | corroborate | support with other evidence |
| 22. | cover | concealed identity or role |
| 23. | decoy | person or thing used to lure |
| 24. | deposition | sworn out-of-court testimony |
| 25. | disguise | appearance changed to conceal identity |
| 26. | DNA | genetic material for identification |
| 27. | document | written or recorded evidence |
| 28. | dossier | collected information about someone |
| 29. | embezzlement | stealing entrusted money |
| 30. | encryption | coded protection of information |
| 31. | evidence | facts supporting a conclusion |
| 32. | extortion | obtaining something through threats |
| 33. | fiber | small threadlike evidence |
| 34. | file | stored case documents |
| 35. | fingerprint | unique mark from a finger |
| 36. | footage | recorded video material |
| 37. | forensics | scientific analysis of evidence |
| 38. | forge | make a false document |
| 39. | frame | falsely make appear guilty |
| 40. | fraud | intentional deception for gain |
| 41. | geotag | location data attached to media |
| 42. | hack | gain unauthorized computer access |
| 43. | harassment | persistent unwanted troubling behavior |
| 44. | hideout | secret place of concealment |
| 45. | homicide | killing of one person by another |
| 46. | inconsistent | not matching previous facts |
| 47. | informant | person supplying secret information |
| 48. | inquiry | formal search for facts |
| 49. | inside job | crime by someone within |
| 50. | intent | purpose to do something |
| 51. | interview | question someone for information |
| 52. | kidnapping | taking a person by force |
| 53. | launder | hide illegal money source |
| 54. | lead | information guiding an inquiry |
| 55. | license plate | vehicle identification plate |
| 56. | manifest | list of passengers or cargo |
| 57. | means | ability to carry something out |
| 58. | metadata | data describing other data |
| 59. | missing person | person whose whereabouts are unknown |
| 60. | MO | usual method of operation |
| 61. | motive | reason for committing an act |
| 62. | mugshot | police booking photograph |
| 63. | network | connected group of people |
| 64. | open case | active unresolved investigation |
| 65. | opportunity | chance to commit an act |
| 66. | paper trail | documentary record of actions |
| 67. | password | secret word for access |
| 68. | person of interest | individual relevant to an inquiry |
| 69. | phish | trick users into revealing data |
| 70. | photo | still image used as evidence |
| 71. | plant | place evidence secretly |
| 72. | record | capture sound or video |
| 73. | registration | official record of ownership |
| 74. | residue | remaining material after an event |
| 75. | robbery | theft using force or threat |
| 76. | ruse | trick used to deceive |
| 77. | sample | small amount for testing |
| 78. | stakeout | watching a place secretly |
| 79. | stalking | repeated threatening following |
| 80. | statement | formal written account |
| 81. | subpoena | order to appear or produce |
| 82. | summons | official order to appear |
| 83. | surveillance | close observation of a person |
| 84. | suspect | person thought possibly guilty |
| 85. | tail | follow someone secretly |
| 86. | testimony | formal spoken evidence |
| 87. | theft | taking property unlawfully |
| 88. | tip | useful piece of information |
| 89. | trace | tiny amount of evidence |
| 90. | transcript | written version of speech |
| 91. | trespass | entering property without permission |
| 92. | undercover | working in disguise secretly |
| 93. | vandalism | deliberate property damage |
| 94. | verify | confirm as true or accurate |
| 95. | VIN | vehicle identification number |
| 96. | visa | permission to enter a country |
| 97. | warrant | legal authorization for action |
| 98. | whereabouts | location of a person |
| 99. | wiretap | secret interception of calls |
| 100. | witness | person who saw something |