Graphology

If a note or piece of a paper if found, investigators can analyze the writing. They can also compare the handwriting on the note with samples from possible suspects.

What the detectives will look for:

1. the formation of the handwriting, such as the shapes of the letters (loop, dotted, crossed t) and their slant angles, connections and curves
2. the line quality, or the thickness of the line as a result of the type of writing instrument used and the pressure exerted while writing
3. the arrangement on the page, including spacing  or size of letters/words, alignment, formatting, how letters are joined and unique punctuation
4. the content, including the spelling, phrasing, punctuation, grammar and style