Several typed questioned documents have a unique mark in the upper right corner. What is the MOST reasonable explanation for the unique mark appearing on all the documents?

A.
The author spilled coffee on all the documents.
B.
The documents were deliberately marked by law enforcement officials in order to keep track of them.
C.
The documents were all photocopied on a machine that had a defect or dirt.
D.
The documents were incorrectly stored and were beginning to degrade.

Several typed questioned documents have a unique mark in the upper right corner. What is the MOST reasonable explanation for the unique mark appearing on all the documents?

A.
The author spilled coffee on all the documents.
B.
The documents were deliberately marked by law enforcement officials in order to keep track of them.
C.
The documents were all photocopied on a machine that had a defect or dirt.
D.
The documents were incorrectly stored and were beginning to degrade.

B. The documents were deliberately marked by law enforcement officials in order to keep track of them.

Which of the following statements is FALSE?

A.
All typewriters and related devices will have variations in the type over time due to wear and tear.
B.
Checks use special paper that prevent forged signatures.
C.
To take a sample of ink on a document, a forensic scientist may take a needle with a blunt end and punch it through the document on an ink line.
D.
Everyone has natural variations in their handwriting.

C. To take a sample of ink on a document, a forensic scientist may take a needle with a blunt end and punch it through the document on an ink line.

Josiah is a forensic scientist who suspects that something has been erased on a document. What does Josiah MOST likely see?

A.
the same color ink throughout
B.
an opaque color in part of the document
C.
thick lines that do not vary in width
D.
the fibers of the paper are disturbed when looked at under a microscope