6. When using a chemical reactant to develop fingerprints, what is the correct sequence of solutions the analyst will try? Why is the last one in the above sequence used last?
a. iodine fuming - Physical Developer -- ninhydrin; It is very expensive.
b. Physical Developer - iodine fuming
cooled.
ninhydrin; It will cause a brownish stain that will disappear once it is
c. iodine fuming
-
ninhydrin
-
Physical Developer: It removes the proteins from the object.
d. ninhydrin
-
Physical Developer - iodine fuming: It must be done in the lab and not the field, so it must be done
last.