Investigators should plan __________________ for sketching the scene. (Fill in the blank)

Investigators should plan __________________ for sketching the scene.
 
  Fill in the blank(s) with the appropriate word(s).

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(Question #2) Sketches provide ___________ data for crime scene reconstructions.
 
  a. Factual
  b. demonstrative
  c. illustrative
  d. corroborative

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(Question #3) The crime scene sketch can be used to _______________ the testimony of witnesses.
 
  a. document
  b. illustrate
  c. eliminate
  d. reconstruct

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(Question #4) Sketches provide a means of documenting the ______________ location of evidence items.
 
  Fill in the blank(s) with the appropriate word(s).