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  • Digital data copiers designed to make exact duplicate copies of encrypted digital data collected from a computer hard drive or other devices capable of storing digital data (e.g., smartphones, digital camera memories) involved in legal investigations. These copiers usually consist of a high-speed automated portable electromechanical unit that can obtain partial (i.e., sector by sector) or total copies of data from a computer hard drive or from other digital data storing devices and make accurate and secure copies onto another digital computer through a universal serial bus (USB) or serial attachment (i.e., SATA) cable following a dedicated software. The copier verifies that no data is lost in the process; the copier has also other capabilities such as test reading of the disk sectors and a security erasing procedure that guarantees that no unwanted data is left. These devices make certain that the copied data cannot be changed or manipulated once it is copied. Computer forensic copiers are used mainly to preserve and document computer data forensic evidence in legal, governmental, or military procedures. Some units are dedicated computer forensic copiers intended only to copy computer hard drives.
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