A small piece of paper from a hotel notepad is found in the pocket of a potential hitman who attempted to kill a "mark."

The paper shows writing in various pen colors, some of which is obliterated and some of which was erased. The top corner of the paper also appears to possess indented writing. Discuss the methods investigators should employ to visualize a much of the writing as possible.

What will be an ideal response?


Answer should include points such as the following:
Infrared luminescence can be used to detect alterations to a document made with ink differing from the original. Infrared luminescence can also reveal writing that has been erased.
Indented writings are often readable when the paper is studied under oblique or side lighting. A second method involves applying an electrostatic charge to the surface of a polymer film that has been placed in contact with a questioned document. Indented impressions on the document are revealed by applying a toner powder to the charged film.

Criminal Justice

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