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AFTE Knowledge and Ability Factors

Home > Examination of Firearms > AFTE Knowledge and Ability Factors
14. Knowledge of how to properly document evidence and analytical results (through notes, sketches, photography, reports, etc.)
15. Knowledge of the techniques and procedures used to properly mark evidence (when appropriate)
38. Knowledge of how and when to use various vises, clamps, and restraining devices
39. Knowledge of how and when to use gunsmithing tools
43. Knowledge of how and when to use borescopes
44. Knowledge of how and when to use bore lights
70. Knowledge of how and when to use spring trigger pull scales
71. Knowledge of how and when to use trigger pull weights
76. Knowledge of breech-loading firearms designs, including falling breechlocks, bolt actions, lever actions, pump actions, break open, semiautomatics (blowback, gas operated, recoil operated, etc.), revolvers--double and single action
77. Knowledge of firearms ignition systems: flintlock, percussion, rimfire, centerfire, caseless ammunition
80. Knowledge of sources of information regarding identification markings and serial numbering systems in firearms (including locations of serial numbers, part/assembly numbers, proof marks on firearms and the locations of hidden numbers)
81. Knowledge of the proper operation of the different types of firearms encountered in casework
82. Knowledge of the different materials that may be present in the bore of a firearm
19. Ability to understand and interpret technical data output from laboratory instruments
21. Ability to recognize discrepancies or inconsistencies in analytical findings and determine their cause and significance
22. Ability to recognize utility and limitations of reference collection/database programs
23. Ability to recognize the limitations of tests and interpretations
24. Ability to determine the design of the lockwork (firing system) in firearms
25. Ability to locate and identify the type (or types) of safety system(s) incorporated in a particular firearm
26.  Ability to determine the design type, method of operation, and ignition of a submitted firearm
27. Ability to recognize when a firearm has been altered from its original design
32. Ability to examine, either directly or through the use of casts, the interior surface of a gun barrel to determine the method of rifling
35. Ability to evaluate the operability of each safety system, chambering method, and lockwork, recognize and explain any defects or failures in each of these systems and the consequences of any such defect or failure
36. Ability to compare firearm mechanisms with standards
37. Ability to recognize which parts of a firearm leave tool marks of forensic interest

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