Digital evidence is information in digital form found on a wide range of computer devices; in fact, it is anything that has a microchip or has been processed by one and then stored on other media. Digital data is a numerical representation that is usually in binary form, as distinct from electronic data stored in analog form. It has been alleged that an Australian narcotics trafficker concealed a spreadsheet of his customers and transactions inside a microchip implanted in his pet dog. It was uncovered when a canny police officer queried the presence of a microchip implant gun, readily available online for a modest cost, in the suspect's premises. This discovery prompted minor surgery on the dog to remove the tag, which was later found to contain the incriminating information in the form of a spreadsheet containing a list of narcotics dealers and transactions.
Evidence tendered in legal cases, such as criminal trials, is classified as witness testimony or direct...