Using Computer Forensic Evidence To Solve Crimes

There are many criminal and civil court cases that require a computer forensic investigation. This type of investigation makes use of the latest computer forensic science and technology to get proof or evidence for legal purposes. Doing this type of investigation through the use of the latest technology and science is called forensics. Computer forensic evidence gathering is the art and science of applying computer science to retrieve evidence to use in criminal or civil courts of law.

Digital computer forensics investigators make use of advanced tools that go above and beyond the normal collection of data, as they are also able to recover damaged and deleted files. The work of computer forensics experts include various processes that examine the hard drive of a computer system carefully to search for any relevant evidence. They will carefully examine and search for data they suspect is on a computer data storage device. That includes hard drives and portable data devices like microdrives, USB drives and external hard drives. The process also involves reviewing the Windows registry for suspected information, as well as finding and cracking passwords, keyword searches for topics related to the crime the owner is suspected of and extracting e-mail and other images for examination.

The first step in any computer forensic evidence search is obtaining a search warrant to look for and seize the suspected system. The search warrant must include wording allowing the investigators to seize not only the computer and hard drive, but also any peripherals thought to be connected with the crime. For instance, a suspected counterfeiter may have used his computer as well as a scanner and a printer to produce his counterfeited documents. If that is the case, then all three items would be seized to provide evidence.

Different countries each have their own computer forensic laws, methods and standards regarding computer forensic evidence. What is acceptable evidence and practice in one country may not be acceptable in another. This can be a serious problem when dealing with crime internationally, since a computer crime can often be perpetrated by someone in another country. Although the Internet may not have any boundaries, computer forensics law enforcement investigators do. It can be a difficult thing to track when investigations leap from server to server, and from country to country, while crossing many borders on the way. The process is further complicated by political differences, legal differences and evidence handling differences.

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