We live in a digital world. Information is recorded at many stages of our daily activities. These include access control systems, telephone call logs, IT network system logs, various system logs on desktop and laptop computers, fax logs, email server records, backup-tapes and records, date stamp and other information on electronic documents.

A comprehensive review of all of this information, usually carried out on a covert basis, can produce an uncannily accurate picture, or profile, of an individual's activities. This can be invaluable when dealing with fraud or suspected misconduct.