Computer and cellular phone forensics:

Computer and cellular phone forensics is a branch of science involving legal evidence that is found indigital storage mediums, desktops, laptops and cellular phones. This field of forensic investigation alsoinvolves database, firewall, and portable or mobile device forensics. Computer forensic investigation isuseful in a variety of situations, such as the examination of a computer system to look for evidence,or to recover lost data after a system-wide computer crash.

Document and handwriting examinations:

The forensic document and handwriting examiner makes critical examinations, comparison and analyses of documents to establish geniuses or to expose forgery or to reveal alterations, additions and deletions.

This includes identifying persons through documents or parts of documents, by showing the authorship of handwriting, to aid in fixing liability or culpability for any kind of fraud that makes use of documents; and generally to help protect the integrity of documents.

The task of forensic document and handwriting examination is to answer questions about a disputed document using a variety of scientific processes and methods. Many examinations involve a comparison of the questioned document, or components of the document, to a set of known standards. The most common type of examination involves handwriting wherein the examiner tries to address concerns about potential authorship.

Handwriting identification is a skill and a science that is based on axioms, principles, theories and knowledge that have accumulated through the hundreds of years that handwriting has been studied.