Perhaps 25% of the cases I handle involve the authorship of anonymous, disputed, or forged documents. The client wants to know who’s writing those nasty, threatening emails or letters. I typically ask the client for writing samples from the suspected author. Sometimes there’s more than one suspect, and I have to decide which of them may be the author of the anonymous document(s).
A forensic linguist who practices stylistic analysis must be exquisitely sensitive to nuances of text. Where a synonym exists, the very choice of each word represents a decision on the part of the author. Superimposed upon that is the way the word is spelled, abbreviated or capitalized. Truly, a text is a tangle of choices.
The following are intended to test your potential as a forensic linguist. There are two exercises from Forensic Linguistics: An Introduction to Language, Crime and the Law, by John Olsson (New York: Continuum, 2004).