This book provides the principal ideas and developments in the practice of the Forensic ICT Investigations. It is a fact that Information Communication Technology ( ICT) crimes have proliferated; therefore the significance of proper identifications, care and processing of digital evidence needs to be taken seriously. Digital Forensic evidence form the silent witness against the offender, they are factual and cannot perjure themselves. This text provides substantive information relating to computer crimes, how they are committed, what evidence is left behind and forensics techniques. It is a suitable text for computer security managers, investigators, lawyers, and auditors to equip themselves to deal with these crime challenges of our time.