What are "grabber" marks?

"Grabber" marks refer to the specific impressions generated by the mechanical apparatus in copiers that help pull paper through the machine. These marks can provide critical information in forensic examinations, particularly in document analysis, as they are unique to the specific machine used and can serve as evidence linking a document to that particular copier. The unique characteristics of these marks can assist forensic experts in determining the origin of a document or in understanding the circumstances surrounding its creation.

In this context, choices related to ink smudging, paper jams, or general wear and tear do not accurately define "grabber" marks, as they either pertain to different issues in document production or lack the specific operational focus that "grabber" marks represent in the context of copier machinery and document examination.