STRIATIONS

Striations by definition are marks, grooves, furrows or ridges that are caused when a cutting blade passes through an object such as a stack of paper.  Striations are the result of defects, flaws or wear characteristics in a particular blade.

EXPECTED RESULTS

A study and comparison of striations can result in the identification of a particular blade. 

SUBMITTER’S RESPONSIBILITIES

In addition to seizure of the cutter, it is imperative that sample cuttings be obtained from the cutter utilizing the entire length of the blade.  Sample cuttings should be made using paper that is similar to that which was used to print the questioned documents.