What method did Arnold use to retrieve all deleted files and folders from suspected media while preventing contamination of the original media?

The method Arnold used to retrieve all deleted files and folders from the suspected media while preventing contamination of the original media is bit-stream imaging. This technique involves creating a sector-by-sector copy of the entire storage device, capturing all data, including deleted files that are still recoverable. Bit-stream imaging ensures that an exact replica of the original media is created, allowing forensic investigators to analyze the copy without risking any alteration or damage to the original evidence.

By using this method, Arnold can maintain the integrity of the evidence, which is crucial in forensic investigations. This approach not only allows for the retrieval of deleted files but also preserves the chain of custody, which is vital for any legal proceedings that may arise from the investigation.

Other methods, while useful in specific contexts, do not provide the same level of comprehensive data recovery and integrity assurance as bit-stream imaging. For example, sparse acquisition captures only the used space on a device, which would not help in recovering deleted files. Raw format also presents limitations in terms of data integrity and may not include certain metadata necessary for a thorough investigation. Advanced Forensics Format (AFF) is a container format that can be used to store data, but it is typically built on the foundation of a bit-stream image and does not by