Inaccuracy in Handwriting Analysis

Sometimes forensic investigators are not able to accurately identify handwriting because it may not be the original copy. The document may have been forged. Some people are so good at forgery that one can not even tell the difference in the handwriting. Also depending on if the person is consistent or not with their handwriting is another factor when it comes to identifying handwriting. Plus there are simpler factors like what the person writes on, if smudged, if typed, and what they write with.