Documentation Analysis Day 7

Do Now What are some of the instruments used to analyze documents?

Flash Card Check Writing samples obtained form an individual either voluntarily or as the result of a court order. Requested Writings The impressions that are left behind on a writing surface, or the surface underneath, by the writing instrument. Indentations

Flash Card Check A box with a very even light source behind a piece of ground or translucent glass or plastic, which is used to backlight an object. Light Box An instrument developed specifically for making indented writing visible on a clear cover sheet without altering the original document. Electrostatic Detection Apparatus

Flash Card Check A separation technique using a plate with a thin layer of absorbent and capillary action to move a solvent up a plate. Thin-Layer Chromatography An instrument that has a number of light sources, filters, and a video camera that greatly increases what one can see on a document compared to what our eyes can normally observe. Spectral Comparator

Reminders Monthly Article Summary Due Thursday Field Trip tomorrow - bring your permission slips. Missed assignments

Last Vocab Word Contemporaneous: Happening or existing in the same period of time. When analysts are examining documents, they can look for clues that lead them to believe that part of a document was created much later than the original.

Invisible Ink Today you will work with your lab groups to complete a WebQuest assignment. You will need at least one netbook per group. Go to people.emich.edu/aburges7/webquest and follow the directions there.