Upon examining a crime scene you don't locate any visible prints. to identify latent prints you will have to use a powder. there is evidence to suggest that the suspect exited the crime scene through a door, the door frame is dark brown and the surrounding wall is dark green. what powder should you use
a) magnetic
b) titanium
c) aluminum
d) fluorescent

a forensic investigation involves the determination of manner, cause and mechanism of death. select the choice that represents an example of cause of death.
a) homicide
b) asphyxia
c) skull fracture
d) epidural hematoma

what two drug isolation techniques are used together to give a very specific identification on a molecular level.
a) scott test and gas chromatography
b) gas chromatography and mass spectrometry
c) thin layer chromatography and infrared spectrometry
d) marquis test and hplc (high pressure liquid chromatography)